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Finding the Fourth Proportional to 267,086.80, 400,630.20 and 80,098.30

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Solution

The fourth proportional to 267,086.80, 400,630.20 and 80,098.30 is: 120,147.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,086.80 : 400,630.20 = 80,098.30 : x
  2. Step 2: Convert to fraction form
    267,086.80/400,630.20 = 80,098.30/x
  3. Step 3: Cross multiply
    267,086.80x = 400,630.20 × 80,098.30
  4. Step 4: Simplify right side
    267,086.80x = 32,089,797,948.66
  5. Step 5: Solve for x
    x = 32,089,797,948.66/267,086.80
  6. Step 6: Final answer
    x = 120,147.45

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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.