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Finding the Fourth Proportional to 462,100.93, 693,217.52 and 142,279.86

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Solution

The fourth proportional to 462,100.93, 693,217.52 and 142,279.86 is: 213,440.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,100.93 : 693,217.52 = 142,279.86 : x
  2. Step 2: Convert to fraction form
    462,100.93/693,217.52 = 142,279.86/x
  3. Step 3: Cross multiply
    462,100.93x = 693,217.52 × 142,279.86
  4. Step 4: Simplify right side
    462,100.93x = 98,630,891,517.30
  5. Step 5: Solve for x
    x = 98,630,891,517.30/462,100.93
  6. Step 6: Final answer
    x = 213,440.15

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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.