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Finding the Third Proportional to 239,940 and 555,474

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Solution

The third proportional to 239,940 and 555,474 is: 1,285,952.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,940 : 555,474 = 555,474 : x
  2. Step 2: Convert to fraction form
    239,940/555,474 = 555,474/x
  3. Step 3: Cross multiply
    239,940x = 555,474 × 555,474
  4. Step 4: Simplify right side
    239,940x = 308,551,364,676
  5. Step 5: Solve for x
    x = 308,551,364,676/239,940
  6. Step 6: Final answer
    x = 1,285,952.17

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.