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Finding the Fourth Proportional to 266,029.79, 398,891.03 and 181,891.85

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Solution

The fourth proportional to 266,029.79, 398,891.03 and 181,891.85 is: 272,732.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,029.79 : 398,891.03 = 181,891.85 : x
  2. Step 2: Convert to fraction form
    266,029.79/398,891.03 = 181,891.85/x
  3. Step 3: Cross multiply
    266,029.79x = 398,891.03 × 181,891.85
  4. Step 4: Simplify right side
    266,029.79x = 72,555,024,491.19
  5. Step 5: Solve for x
    x = 72,555,024,491.19/266,029.79
  6. Step 6: Final answer
    x = 272,732.71

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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.