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Finding the Fourth Proportional to 381,149.47, 570,961.92 and 229,262.66

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Solution

The fourth proportional to 381,149.47, 570,961.92 and 229,262.66 is: 343,435.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,149.47 : 570,961.92 = 229,262.66 : x
  2. Step 2: Convert to fraction form
    381,149.47/570,961.92 = 229,262.66/x
  3. Step 3: Cross multiply
    381,149.47x = 570,961.92 × 229,262.66
  4. Step 4: Simplify right side
    381,149.47x = 130,900,249,105.58
  5. Step 5: Solve for x
    x = 130,900,249,105.58/381,149.47
  6. Step 6: Final answer
    x = 343,435.47

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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.