Home / 221,456.20-331,844.10-165,031.60

Finding the Fourth Proportional to 221,456.20, 331,844.10 and 165,031.60

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Solution

The fourth proportional to 221,456.20, 331,844.10 and 165,031.60 is: 247,293.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,456.20 : 331,844.10 = 165,031.60 : x
  2. Step 2: Convert to fraction form
    221,456.20/331,844.10 = 165,031.60/x
  3. Step 3: Cross multiply
    221,456.20x = 331,844.10 × 165,031.60
  4. Step 4: Simplify right side
    221,456.20x = 54,764,762,773.56
  5. Step 5: Solve for x
    x = 54,764,762,773.56/221,456.20
  6. Step 6: Final answer
    x = 247,293.88

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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.