Understanding Percent Proportions

This video tutorial explains how to solve the second type of percent problems using the percent proportion method. It involves setting up a proportion with the given percent as a fraction over 100 and identifying the 'is' and 'of' numbers. The tutorial walks through an example problem, '36 is 15% of what number?', demonstrating how to set up the equation, cross-multiply, and solve for the unknown variable. The solution reveals that 36 is 15% of 240. The video concludes with a mention of solving the third type of percent problem in the next video.

What is the first step in setting up a percent proportion?

• Convert the percent to a decimal.

• Cross-multiply the given numbers.

• Identify the unknown variable.

• Write the percent as a fraction over 100.

In a percent problem, where should the number associated with 'is' be placed?

• As the unknown variable.

• In the numerator of the fraction.

• As the percent value.

• In the denominator of the fraction.

What does the term 'of what number' indicate in a percent problem?

• The number is irrelevant to the problem.

• The number is the percent value.

• The number is unknown and should be in the denominator.

• The number is known and should be in the numerator.

How do you solve for the unknown variable in a percent proportion?

• Multiply all numbers together.

• Subtract the smaller number from the larger one.

• Add the two ratios together.

• Cross-multiply and divide.

What is the result of solving the problem '36 is 15% of what number?'

• 540

• 360

• 240

• 150

What operation is performed after cross-multiplying in a percent proportion problem?

• Division

• Multiplication

• Addition

• Subtraction

What is the purpose of using a variable in the denominator of a percent proportion?

• To simplify the equation.

• To represent the unknown number.

• To indicate the percent value.

• To represent the known number.

What will be covered in the next video according to the conclusion?

• Basic arithmetic operations.

• Advanced algebraic equations.

• The third type of percent problem.

• The first type of percent problem.