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Finding the Fourth Proportional to 273.69, 408.12 and 271.22

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Solution

The fourth proportional to 273.69, 408.12 and 271.22 is: 404.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.69 : 408.12 = 271.22 : x
  2. Step 2: Convert to fraction form
    273.69/408.12 = 271.22/x
  3. Step 3: Cross multiply
    273.69x = 408.12 × 271.22
  4. Step 4: Simplify right side
    273.69x = 110,691.32
  5. Step 5: Solve for x
    x = 110,691.32/273.69
  6. Step 6: Final answer
    x = 404.44

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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.