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Finding the Fourth Proportional to 269.91, 404.39 and 201.56

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Solution

The fourth proportional to 269.91, 404.39 and 201.56 is: 301.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.91 : 404.39 = 201.56 : x
  2. Step 2: Convert to fraction form
    269.91/404.39 = 201.56/x
  3. Step 3: Cross multiply
    269.91x = 404.39 × 201.56
  4. Step 4: Simplify right side
    269.91x = 81,507.33
  5. Step 5: Solve for x
    x = 81,507.33/269.91
  6. Step 6: Final answer
    x = 301.98

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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.