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Finding the Fourth Proportional to 363,427.20, 545,140.80 and 251,452.80

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Solution

The fourth proportional to 363,427.20, 545,140.80 and 251,452.80 is: 377,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,427.20 : 545,140.80 = 251,452.80 : x
  2. Step 2: Convert to fraction form
    363,427.20/545,140.80 = 251,452.80/x
  3. Step 3: Cross multiply
    363,427.20x = 545,140.80 × 251,452.80
  4. Step 4: Simplify right side
    363,427.20x = 137,077,180,554.24
  5. Step 5: Solve for x
    x = 137,077,180,554.24/363,427.20
  6. Step 6: Final answer
    x = 377,179.20

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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.