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Finding the Third Proportional to 71,370 and 156,862

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Solution

The third proportional to 71,370 and 156,862 is: 344,762.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,370 : 156,862 = 156,862 : x
  2. Step 2: Convert to fraction form
    71,370/156,862 = 156,862/x
  3. Step 3: Cross multiply
    71,370x = 156,862 × 156,862
  4. Step 4: Simplify right side
    71,370x = 24,605,687,044
  5. Step 5: Solve for x
    x = 24,605,687,044/71,370
  6. Step 6: Final answer
    x = 344,762.32

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.