Home / 221,204.38-331,807.78-54,992.38

Finding the Fourth Proportional to 221,204.38, 331,807.78 and 54,992.38

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Solution

The fourth proportional to 221,204.38, 331,807.78 and 54,992.38 is: 82,488.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,204.38 : 331,807.78 = 54,992.38 : x
  2. Step 2: Convert to fraction form
    221,204.38/331,807.78 = 54,992.38/x
  3. Step 3: Cross multiply
    221,204.38x = 331,807.78 × 54,992.38
  4. Step 4: Simplify right side
    221,204.38x = 18,246,897,728.20
  5. Step 5: Solve for x
    x = 18,246,897,728.20/221,204.38
  6. Step 6: Final answer
    x = 82,488.86

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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.