Home / 381,979.22-527,100.46-220,844.65

Finding the Fourth Proportional to 381,979.22, 527,100.46 and 220,844.65

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Solution

The fourth proportional to 381,979.22, 527,100.46 and 220,844.65 is: 304,747.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,979.22 : 527,100.46 = 220,844.65 : x
  2. Step 2: Convert to fraction form
    381,979.22/527,100.46 = 220,844.65/x
  3. Step 3: Cross multiply
    381,979.22x = 527,100.46 × 220,844.65
  4. Step 4: Simplify right side
    381,979.22x = 116,407,314,733.68
  5. Step 5: Solve for x
    x = 116,407,314,733.68/381,979.22
  6. Step 6: Final answer
    x = 304,747.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.