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Finding the Fourth Proportional to 203,885.39, 281,367.92 and 123,327.65

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Solution

The fourth proportional to 203,885.39, 281,367.92 and 123,327.65 is: 170,195.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,885.39 : 281,367.92 = 123,327.65 : x
  2. Step 2: Convert to fraction form
    203,885.39/281,367.92 = 123,327.65/x
  3. Step 3: Cross multiply
    203,885.39x = 281,367.92 × 123,327.65
  4. Step 4: Simplify right side
    203,885.39x = 34,700,443,260.47
  5. Step 5: Solve for x
    x = 34,700,443,260.47/203,885.39
  6. Step 6: Final answer
    x = 170,195.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.