Rates, Ratios, Percent, Conversions (Proportion Problems)

Rates, Ratios, Percent, Conversions (Proportion Problems)

​Proportion Problems

​Any problem that compares two units, can be solved with a proportion.

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​Ex) -$ per pound of apples

​ -% and total students

​ - centimeters and feet

​ - miles traveled per hour

​ - part and whole relationshps

Open Ended

​The scale on a map is 2 cm = 25 miles. Dave measured the distance to the next town at 5 cm. How many miles away is the next town?

What two units are being compared in this question?

​Let's set up a proportion and solve!

​The scale on a map is 2 cm = 25 miles. Dave measured the distance to the next town at 5 cm. How many miles away is the next town?

Multiple Choice

A blueprint of a house has a scale of 1 cm = 3ft. If the living room has a width of 21 feet in real life, how many centimeters wide is it on the blueprint?

• 3 ft

• 7 cm

• 7 ft

• 3 cm

Let's set up a percent proportion and solve!

​The student council hosted a bake sale. Of the 40 items brought to sell, 18 were brownies. What percent of the bake sale were brownies?

Open Ended

Jonathan pays $9.00 for 12 pounds of sugar. How much would he pay for $$\frac{1}{2}$$  pounds of sugar?

What two units are being compared here?

Let's set up a proportion and solve!

Multiple Choice

Kaden pays $10.25 for 5 pounds of apples. How much would he pay for  $$\frac{1}{2}$$  pound?

• $0.52

• $4.76

• $5.25

• $1.02

​Challenge!

​Mr. Thomas drank 2 liters of Dr. Pepper over the weekend. There are approximately 29.6 milliliters in 1 fluid ounce. Which measurement is closest to the number of fluid ounces in 2 liters?

​Challenge!

Mrs. Massey drank 5 liters of Pumpkin Spice lattes last fall. There are approximately 29.6 milliliters in 1 fluid ounce. Which measurement is closest to the number of fluid ounces in 5 liters?