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Finding the Third Proportional to 71,838 and 156,264

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Solution

The third proportional to 71,838 and 156,264 is: 339,909.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,838 : 156,264 = 156,264 : x
  2. Step 2: Convert to fraction form
    71,838/156,264 = 156,264/x
  3. Step 3: Cross multiply
    71,838x = 156,264 × 156,264
  4. Step 4: Simplify right side
    71,838x = 24,418,437,696
  5. Step 5: Solve for x
    x = 24,418,437,696/71,838
  6. Step 6: Final answer
    x = 339,909.76

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.