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Finding the Fourth Proportional to 269.97, 404.83 and 154.47

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Solution

The fourth proportional to 269.97, 404.83 and 154.47 is: 231.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.97 : 404.83 = 154.47 : x
  2. Step 2: Convert to fraction form
    269.97/404.83 = 154.47/x
  3. Step 3: Cross multiply
    269.97x = 404.83 × 154.47
  4. Step 4: Simplify right side
    269.97x = 62,534.09
  5. Step 5: Solve for x
    x = 62,534.09/269.97
  6. Step 6: Final answer
    x = 231.63

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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.