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Finding the Fourth Proportional to 372,687.68, 559,123.68 and 123,394.88

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Solution

The fourth proportional to 372,687.68, 559,123.68 and 123,394.88 is: 185,122.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,687.68 : 559,123.68 = 123,394.88 : x
  2. Step 2: Convert to fraction form
    372,687.68/559,123.68 = 123,394.88/x
  3. Step 3: Cross multiply
    372,687.68x = 559,123.68 × 123,394.88
  4. Step 4: Simplify right side
    372,687.68x = 68,992,999,398.76
  5. Step 5: Solve for x
    x = 68,992,999,398.76/372,687.68
  6. Step 6: Final answer
    x = 185,122.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.