Home / 381,976.21-527,096.32-220,841.65

Finding the Fourth Proportional to 381,976.21, 527,096.32 and 220,841.65

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Solution

The fourth proportional to 381,976.21, 527,096.32 and 220,841.65 is: 304,743.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,976.21 : 527,096.32 = 220,841.65 : x
  2. Step 2: Convert to fraction form
    381,976.21/527,096.32 = 220,841.65/x
  3. Step 3: Cross multiply
    381,976.21x = 527,096.32 × 220,841.65
  4. Step 4: Simplify right side
    381,976.21x = 116,404,820,263.15
  5. Step 5: Solve for x
    x = 116,404,820,263.15/381,976.21
  6. Step 6: Final answer
    x = 304,743.64

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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.