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Finding the Third Proportional to 67,531 and 156,342

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Solution

The third proportional to 67,531 and 156,342 is: 361,949.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,531 : 156,342 = 156,342 : x
  2. Step 2: Convert to fraction form
    67,531/156,342 = 156,342/x
  3. Step 3: Cross multiply
    67,531x = 156,342 × 156,342
  4. Step 4: Simplify right side
    67,531x = 24,442,820,964
  5. Step 5: Solve for x
    x = 24,442,820,964/67,531
  6. Step 6: Final answer
    x = 361,949.64

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.