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Finding the Fourth Proportional to 267,261.60, 400,892.40 and 80,248.80

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Solution

The fourth proportional to 267,261.60, 400,892.40 and 80,248.80 is: 120,373.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,261.60 : 400,892.40 = 80,248.80 : x
  2. Step 2: Convert to fraction form
    267,261.60/400,892.40 = 80,248.80/x
  3. Step 3: Cross multiply
    267,261.60x = 400,892.40 × 80,248.80
  4. Step 4: Simplify right side
    267,261.60x = 32,171,134,029.12
  5. Step 5: Solve for x
    x = 32,171,134,029.12/267,261.60
  6. Step 6: Final answer
    x = 120,373.20

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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.