Finding the Third Proportional to 152 and 388
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Solution
The third proportional to 152 and 388 is: 990.42
Step by Step Solution
- Step 1: Write the proportion equation
152 : 388 = 388 : x - Step 2: Convert to fraction form
152/388 = 388/x - Step 3: Cross multiply
152x = 388 × 388 - Step 4: Simplify right side
152x = 150,544 - Step 5: Solve for x
x = 150,544/152 - Step 6: Final answer
x = 990.42
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These problems maintain the same ratio (2.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.