Home / 252,211.20-378,385.92-199,795.20

Finding the Fourth Proportional to 252,211.20, 378,385.92 and 199,795.20

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Solution

The fourth proportional to 252,211.20, 378,385.92 and 199,795.20 is: 299,747.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,211.20 : 378,385.92 = 199,795.20 : x
  2. Step 2: Convert to fraction form
    252,211.20/378,385.92 = 199,795.20/x
  3. Step 3: Cross multiply
    252,211.20x = 378,385.92 × 199,795.20
  4. Step 4: Simplify right side
    252,211.20x = 75,599,690,563.58
  5. Step 5: Solve for x
    x = 75,599,690,563.58/252,211.20
  6. Step 6: Final answer
    x = 299,747.56

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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.