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Finding the Third Proportional to 71,559 and 155,423

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Solution

The third proportional to 71,559 and 155,423 is: 337,571.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,559 : 155,423 = 155,423 : x
  2. Step 2: Convert to fraction form
    71,559/155,423 = 155,423/x
  3. Step 3: Cross multiply
    71,559x = 155,423 × 155,423
  4. Step 4: Simplify right side
    71,559x = 24,156,308,929
  5. Step 5: Solve for x
    x = 24,156,308,929/71,559
  6. Step 6: Final answer
    x = 337,571.92

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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.