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Finding the Fourth Proportional to 254,480.20, 381,720.30 and 235,234.60

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Solution

The fourth proportional to 254,480.20, 381,720.30 and 235,234.60 is: 352,851.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,480.20 : 381,720.30 = 235,234.60 : x
  2. Step 2: Convert to fraction form
    254,480.20/381,720.30 = 235,234.60/x
  3. Step 3: Cross multiply
    254,480.20x = 381,720.30 × 235,234.60
  4. Step 4: Simplify right side
    254,480.20x = 89,793,822,082.38
  5. Step 5: Solve for x
    x = 89,793,822,082.38/254,480.20
  6. Step 6: Final answer
    x = 352,851.90

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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.