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Finding the Fourth Proportional to 267,231.60, 400,847.40 and 80,218.80

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Solution

The fourth proportional to 267,231.60, 400,847.40 and 80,218.80 is: 120,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,231.60 : 400,847.40 = 80,218.80 : x
  2. Step 2: Convert to fraction form
    267,231.60/400,847.40 = 80,218.80/x
  3. Step 3: Cross multiply
    267,231.60x = 400,847.40 × 80,218.80
  4. Step 4: Simplify right side
    267,231.60x = 32,155,497,411.12
  5. Step 5: Solve for x
    x = 32,155,497,411.12/267,231.60
  6. Step 6: Final answer
    x = 120,328.20

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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.