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Finding the Fourth Proportional to 267,819.20, 400,951.20 and 260,043.20

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Solution

The fourth proportional to 267,819.20, 400,951.20 and 260,043.20 is: 389,309.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,819.20 : 400,951.20 = 260,043.20 : x
  2. Step 2: Convert to fraction form
    267,819.20/400,951.20 = 260,043.20/x
  3. Step 3: Cross multiply
    267,819.20x = 400,951.20 × 260,043.20
  4. Step 4: Simplify right side
    267,819.20x = 104,264,633,091.84
  5. Step 5: Solve for x
    x = 104,264,633,091.84/267,819.20
  6. Step 6: Final answer
    x = 389,309.78

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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.