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Finding the Fourth Proportional to 267,799.20, 400,921.20 and 260,023.20

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Solution

The fourth proportional to 267,799.20, 400,921.20 and 260,023.20 is: 389,279.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,799.20 : 400,921.20 = 260,023.20 : x
  2. Step 2: Convert to fraction form
    267,799.20/400,921.20 = 260,023.20/x
  3. Step 3: Cross multiply
    267,799.20x = 400,921.20 × 260,023.20
  4. Step 4: Simplify right side
    267,799.20x = 104,248,813,371.84
  5. Step 5: Solve for x
    x = 104,248,813,371.84/267,799.20
  6. Step 6: Final answer
    x = 389,279.78

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1.5x scale

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.