Home / 221,437.20-331,815.60-165,012.60

Finding the Fourth Proportional to 221,437.20, 331,815.60 and 165,012.60

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Solution

The fourth proportional to 221,437.20, 331,815.60 and 165,012.60 is: 247,265.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,437.20 : 331,815.60 = 165,012.60 : x
  2. Step 2: Convert to fraction form
    221,437.20/331,815.60 = 165,012.60/x
  3. Step 3: Cross multiply
    221,437.20x = 331,815.60 × 165,012.60
  4. Step 4: Simplify right side
    221,437.20x = 54,753,754,876.56
  5. Step 5: Solve for x
    x = 54,753,754,876.56/221,437.20
  6. Step 6: Final answer
    x = 247,265.39

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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.