Proportions in Word Problems: Key Concepts and Applications

The video tutorial covers solving word problems using proportions. It begins with an introduction to the proportion frame, explaining the relationship between parts and wholes in percentage terms. Two examples are provided: one calculates the percentage of students who prefer the color purple, and the other determines the number of club members needed to vote. The tutorial concludes with instructions for practicing additional problems on Edpuzzle.

What is the proportion frame used for solving word problems with proportions?

• Whole over percent equals part over 100

• Part over percent equals whole over 100

• Whole over part equals percent over 100

• Part over whole equals percent over 100

In Example 1, what does the total number of students (435) represent?

• The part

• The whole

• The variable

• The percentage

Why can't the number 55 be considered the whole in Example 1?

• Because it represents the percentage

• Because it represents the total

• Because it represents the part

• Because it represents the variable

What is the first step in setting up the proportion frame for Example 1?

• Cross-multiplying the numbers

• Identifying the total and the part

• Dividing both sides by 100

• Finding the variable

What is the percentage of students who like The Color Purple in Example 1?

• 12.6%

• 13.5%

• 11.4%

• 10.2%

In Example 2, what does the number 40 represent?

• The part

• The whole

• The percentage

• The variable

What percentage of Yolanda's Club members must be present to vote?

• 100%

• 70%

• 90%

• 80%

How many members must be present to vote in Yolanda's Club?

• 30

• 34

• 32

• 36

What is the first step in solving Example 2 using the proportion frame?

• Finding the variable

• Dividing both sides by 100

• Identifying the total and the part

• Cross-multiplying the numbers

What should you do after setting up the proportion frame for the next exercises?

• Skip the exercises

• Ask for help

• Write the proportion on your paper

• Randomly click the answers