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Finding the Third Proportional to 71,442 and 156,708

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Solution

The third proportional to 71,442 and 156,708 is: 343,738.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,442 : 156,708 = 156,708 : x
  2. Step 2: Convert to fraction form
    71,442/156,708 = 156,708/x
  3. Step 3: Cross multiply
    71,442x = 156,708 × 156,708
  4. Step 4: Simplify right side
    71,442x = 24,557,397,264
  5. Step 5: Solve for x
    x = 24,557,397,264/71,442
  6. Step 6: Final answer
    x = 343,738.94

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.