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Finding the Third Proportional to 71,841 and 156,117

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Solution

The third proportional to 71,841 and 156,117 is: 339,256.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,841 : 156,117 = 156,117 : x
  2. Step 2: Convert to fraction form
    71,841/156,117 = 156,117/x
  3. Step 3: Cross multiply
    71,841x = 156,117 × 156,117
  4. Step 4: Simplify right side
    71,841x = 24,372,517,689
  5. Step 5: Solve for x
    x = 24,372,517,689/71,841
  6. Step 6: Final answer
    x = 339,256.38

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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.