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Finding the Fourth Proportional to 267,017.20, 400,474.80 and 80,028.68

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Solution

The fourth proportional to 267,017.20, 400,474.80 and 80,028.68 is: 120,027.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,017.20 : 400,474.80 = 80,028.68 : x
  2. Step 2: Convert to fraction form
    267,017.20/400,474.80 = 80,028.68/x
  3. Step 3: Cross multiply
    267,017.20x = 400,474.80 × 80,028.68
  4. Step 4: Simplify right side
    267,017.20x = 32,049,469,617.26
  5. Step 5: Solve for x
    x = 32,049,469,617.26/267,017.20
  6. Step 6: Final answer
    x = 120,027.73

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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.