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Finding the Fourth Proportional to 367,068.80, 550,439.17 and 142,354.55

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Solution

The fourth proportional to 367,068.80, 550,439.17 and 142,354.55 is: 213,468.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,068.80 : 550,439.17 = 142,354.55 : x
  2. Step 2: Convert to fraction form
    367,068.80/550,439.17 = 142,354.55/x
  3. Step 3: Cross multiply
    367,068.80x = 550,439.17 × 142,354.55
  4. Step 4: Simplify right side
    367,068.80x = 78,357,520,347.72
  5. Step 5: Solve for x
    x = 78,357,520,347.72/367,068.80
  6. Step 6: Final answer
    x = 213,468.21

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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.