Finding the Third Proportional to 87 and 156.25
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Solution
The third proportional to 87 and 156.25 is: 280.62
Step by Step Solution
- Step 1: Write the proportion equation
87 : 156.25 = 156.25 : x - Step 2: Convert to fraction form
87/156.25 = 156.25/x - Step 3: Cross multiply
87x = 156.25 × 156.25 - Step 4: Simplify right side
87x = 24,414.06 - Step 5: Solve for x
x = 24,414.06/87 - Step 6: Final answer
x = 280.62
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These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.