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Finding the Fourth Proportional to 271.28, 404.94 and 251.24

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Solution

The fourth proportional to 271.28, 404.94 and 251.24 is: 375.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.28 : 404.94 = 251.24 : x
  2. Step 2: Convert to fraction form
    271.28/404.94 = 251.24/x
  3. Step 3: Cross multiply
    271.28x = 404.94 × 251.24
  4. Step 4: Simplify right side
    271.28x = 101,737.13
  5. Step 5: Solve for x
    x = 101,737.13/271.28
  6. Step 6: Final answer
    x = 375.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.