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Finding the Fourth Proportional to 442,575.48, 663,863.62 and 189,691.86

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Solution

The fourth proportional to 442,575.48, 663,863.62 and 189,691.86 is: 284,537.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,575.48 : 663,863.62 = 189,691.86 : x
  2. Step 2: Convert to fraction form
    442,575.48/663,863.62 = 189,691.86/x
  3. Step 3: Cross multiply
    442,575.48x = 663,863.62 × 189,691.86
  4. Step 4: Simplify right side
    442,575.48x = 125,929,524,864.13
  5. Step 5: Solve for x
    x = 125,929,524,864.13/442,575.48
  6. Step 6: Final answer
    x = 284,537.96

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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.