Find Missing Ratio and Proportion

Find the missing value(s) for the ratio table.

• a = 36

  b = 108

• a = 108

  b = 36

• a = 32

  b = 90

• a = 108

  b = 90

Find the missing value for the ratio.

• 3

• 9

• 7

• 21

Find the missing value for the ratio.

• 56

• 48

• 7

• 72

What is the value of B in the ratio table?

• 28

• 70

• 49

• 56

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Ratio Table Missing Value

A class has 30 students. 18 are boys. What is the ratio of boys to girls?

• 12:18

• 3:2

• 30:18

• 18:7

Based on the information in the table, how many cups of sugar should Felisha mix with 6 cups of water?

Coco is packing kettle corn into bags for snacks. She knows that she packs 6.4 ounces into 4 bags. She creates the following table to find other values for the number of ounces packed to the number of bags used in the same proportion.
Using the first row, Coco ​ (a)   to find the missing value for the second row. If she uses the first row to find the value in the third row, Coco will ​ (b)   .

• divides by 4

• multiply by 2.25

• subtracts by 4

• multiplies by 4

• subtracts 2.25

• divide 2.25

A restaurant orders corn tortillas and flour tortillas. The ratio of the number of corn tortillas to the number of flour tortillas is 2 : 3. What is the ratio of the number of flour tortillas to the total number of tortillas?

• 3 : 8

• 3 : 5

• 2 : 8

• 2 : 5

The amount of eggs and the cups of cream needed to make egg nog have a proportional relationship. Complete the table.

• 5/1 & 5/1

• 10/2 & 25/5

• 1/5 & 1/5

• 2/10 & 5/25

To disinfect 1 quart of stream water to make it drinkable, you need to add 2 tablets of iodine. How many tablets do you need to disinfect 4 quarts?

• 4 tablets

• 5 tablets

• 6 tablets

• 8 tablets