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Finding the Fourth Proportional to 271.73, 404.87 and 270.65

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Solution

The fourth proportional to 271.73, 404.87 and 270.65 is: 403.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.73 : 404.87 = 270.65 : x
  2. Step 2: Convert to fraction form
    271.73/404.87 = 270.65/x
  3. Step 3: Cross multiply
    271.73x = 404.87 × 270.65
  4. Step 4: Simplify right side
    271.73x = 109,578.07
  5. Step 5: Solve for x
    x = 109,578.07/271.73
  6. Step 6: Final answer
    x = 403.26

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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.