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Finding the Fourth Proportional to 485,296.08, 669,713.48 and 267,512.50

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Solution

The fourth proportional to 485,296.08, 669,713.48 and 267,512.50 is: 369,169.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,296.08 : 669,713.48 = 267,512.50 : x
  2. Step 2: Convert to fraction form
    485,296.08/669,713.48 = 267,512.50/x
  3. Step 3: Cross multiply
    485,296.08x = 669,713.48 × 267,512.50
  4. Step 4: Simplify right side
    485,296.08x = 179,156,727,318.50
  5. Step 5: Solve for x
    x = 179,156,727,318.50/485,296.08
  6. Step 6: Final answer
    x = 369,169.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.