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Finding the Fourth Proportional to 485,295.08, 669,712.10 and 267,511.50

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Solution

The fourth proportional to 485,295.08, 669,712.10 and 267,511.50 is: 369,168.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,295.08 : 669,712.10 = 267,511.50 : x
  2. Step 2: Convert to fraction form
    485,295.08/669,712.10 = 267,511.50/x
  3. Step 3: Cross multiply
    485,295.08x = 669,712.10 × 267,511.50
  4. Step 4: Simplify right side
    485,295.08x = 179,155,687,101.59
  5. Step 5: Solve for x
    x = 179,155,687,101.59/485,295.08
  6. Step 6: Final answer
    x = 369,168.57

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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.