Home / 221,330.10-331,995.15-88,305.83

Finding the Fourth Proportional to 221,330.10, 331,995.15 and 88,305.83

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Solution

The fourth proportional to 221,330.10, 331,995.15 and 88,305.83 is: 132,458.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,330.10 : 331,995.15 = 88,305.83 : x
  2. Step 2: Convert to fraction form
    221,330.10/331,995.15 = 88,305.83/x
  3. Step 3: Cross multiply
    221,330.10x = 331,995.15 × 88,305.83
  4. Step 4: Simplify right side
    221,330.10x = 29,317,105,616.75
  5. Step 5: Solve for x
    x = 29,317,105,616.75/221,330.10
  6. Step 6: Final answer
    x = 132,458.74

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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.