Finding the Third Proportional to 152.50 and 217
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Solution
The third proportional to 152.50 and 217 is: 308.78
Step by Step Solution
- Step 1: Write the proportion equation
152.50 : 217 = 217 : x - Step 2: Convert to fraction form
152.50/217 = 217/x - Step 3: Cross multiply
152.50x = 217 × 217 - Step 4: Simplify right side
152.50x = 47,089 - Step 5: Solve for x
x = 47,089/152.50 - Step 6: Final answer
x = 308.78
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These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.