Finding the Third Proportional to 152.50 and 387
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Solution
The third proportional to 152.50 and 387 is: 982.09
Step by Step Solution
- Step 1: Write the proportion equation
152.50 : 387 = 387 : x - Step 2: Convert to fraction form
152.50/387 = 387/x - Step 3: Cross multiply
152.50x = 387 × 387 - Step 4: Simplify right side
152.50x = 149,769 - Step 5: Solve for x
x = 149,769/152.50 - Step 6: Final answer
x = 982.09
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Why These Related Problems?
These problems maintain the same ratio (2.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.