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Finding the Third Proportional to 71,558 and 155,407

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Solution

The third proportional to 71,558 and 155,407 is: 337,507.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,558 : 155,407 = 155,407 : x
  2. Step 2: Convert to fraction form
    71,558/155,407 = 155,407/x
  3. Step 3: Cross multiply
    71,558x = 155,407 × 155,407
  4. Step 4: Simplify right side
    71,558x = 24,151,335,649
  5. Step 5: Solve for x
    x = 24,151,335,649/71,558
  6. Step 6: Final answer
    x = 337,507.14

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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.