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Finding the Third Proportional to 71,427 and 155,157

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Solution

The third proportional to 71,427 and 155,157 is: 337,039.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,427 : 155,157 = 155,157 : x
  2. Step 2: Convert to fraction form
    71,427/155,157 = 155,157/x
  3. Step 3: Cross multiply
    71,427x = 155,157 × 155,157
  4. Step 4: Simplify right side
    71,427x = 24,073,694,649
  5. Step 5: Solve for x
    x = 24,073,694,649/71,427
  6. Step 6: Final answer
    x = 337,039.14

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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.