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Finding the Fourth Proportional to 617.67, 927.11 and 271.24

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Solution

The fourth proportional to 617.67, 927.11 and 271.24 is: 407.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.67 : 927.11 = 271.24 : x
  2. Step 2: Convert to fraction form
    617.67/927.11 = 271.24/x
  3. Step 3: Cross multiply
    617.67x = 927.11 × 271.24
  4. Step 4: Simplify right side
    617.67x = 251,469.32
  5. Step 5: Solve for x
    x = 251,469.32/617.67
  6. Step 6: Final answer
    x = 407.13

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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.