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Finding the Fourth Proportional to 375.29, 517.87 and 235.41

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Solution

The fourth proportional to 375.29, 517.87 and 235.41 is: 324.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.29 : 517.87 = 235.41 : x
  2. Step 2: Convert to fraction form
    375.29/517.87 = 235.41/x
  3. Step 3: Cross multiply
    375.29x = 517.87 × 235.41
  4. Step 4: Simplify right side
    375.29x = 121,912.37
  5. Step 5: Solve for x
    x = 121,912.37/375.29
  6. Step 6: Final answer
    x = 324.85

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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.