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Finding the Fourth Proportional to 299,272.40, 447,612.60 and 267,909.20

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Solution

The fourth proportional to 299,272.40, 447,612.60 and 267,909.20 is: 400,703.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,272.40 : 447,612.60 = 267,909.20 : x
  2. Step 2: Convert to fraction form
    299,272.40/447,612.60 = 267,909.20/x
  3. Step 3: Cross multiply
    299,272.40x = 447,612.60 × 267,909.20
  4. Step 4: Simplify right side
    299,272.40x = 119,919,533,575.92
  5. Step 5: Solve for x
    x = 119,919,533,575.92/299,272.40
  6. Step 6: Final answer
    x = 400,703.62

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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.