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Finding the Fourth Proportional to 366,883.92, 550,421.55 and 142,251.68

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Solution

The fourth proportional to 366,883.92, 550,421.55 and 142,251.68 is: 213,414.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,883.92 : 550,421.55 = 142,251.68 : x
  2. Step 2: Convert to fraction form
    366,883.92/550,421.55 = 142,251.68/x
  3. Step 3: Cross multiply
    366,883.92x = 550,421.55 × 142,251.68
  4. Step 4: Simplify right side
    366,883.92x = 78,298,387,443.60
  5. Step 5: Solve for x
    x = 78,298,387,443.60/366,883.92
  6. Step 6: Final answer
    x = 213,414.61

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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.