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Finding the Fourth Proportional to 267,265.60, 400,780.80 and 80,233.60

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Solution

The fourth proportional to 267,265.60, 400,780.80 and 80,233.60 is: 120,315.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,265.60 : 400,780.80 = 80,233.60 : x
  2. Step 2: Convert to fraction form
    267,265.60/400,780.80 = 80,233.60/x
  3. Step 3: Cross multiply
    267,265.60x = 400,780.80 × 80,233.60
  4. Step 4: Simplify right side
    267,265.60x = 32,156,086,394.88
  5. Step 5: Solve for x
    x = 32,156,086,394.88/267,265.60
  6. Step 6: Final answer
    x = 120,315.10

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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.