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Finding the Third Proportional to 71,612 and 155,656

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Solution

The third proportional to 71,612 and 155,656 is: 338,334.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,612 : 155,656 = 155,656 : x
  2. Step 2: Convert to fraction form
    71,612/155,656 = 155,656/x
  3. Step 3: Cross multiply
    71,612x = 155,656 × 155,656
  4. Step 4: Simplify right side
    71,612x = 24,228,790,336
  5. Step 5: Solve for x
    x = 24,228,790,336/71,612
  6. Step 6: Final answer
    x = 338,334.22

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.