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Finding the Fourth Proportional to 269.16, 404.10 and 243.84

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Solution

The fourth proportional to 269.16, 404.10 and 243.84 is: 366.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.16 : 404.10 = 243.84 : x
  2. Step 2: Convert to fraction form
    269.16/404.10 = 243.84/x
  3. Step 3: Cross multiply
    269.16x = 404.10 × 243.84
  4. Step 4: Simplify right side
    269.16x = 98,535.74
  5. Step 5: Solve for x
    x = 98,535.74/269.16
  6. Step 6: Final answer
    x = 366.09

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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.