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Finding the Fourth Proportional to 375.11, 517.57 and 227.75

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Solution

The fourth proportional to 375.11, 517.57 and 227.75 is: 314.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.11 : 517.57 = 227.75 : x
  2. Step 2: Convert to fraction form
    375.11/517.57 = 227.75/x
  3. Step 3: Cross multiply
    375.11x = 517.57 × 227.75
  4. Step 4: Simplify right side
    375.11x = 117,873.41
  5. Step 5: Solve for x
    x = 117,873.41/375.11
  6. Step 6: Final answer
    x = 314.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.