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