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Finding the Fourth Proportional to 375.22, 517.82 and 235.29

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Solution

The fourth proportional to 375.22, 517.82 and 235.29 is: 324.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.22 : 517.82 = 235.29 : x
  2. Step 2: Convert to fraction form
    375.22/517.82 = 235.29/x
  3. Step 3: Cross multiply
    375.22x = 517.82 × 235.29
  4. Step 4: Simplify right side
    375.22x = 121,837.87
  5. Step 5: Solve for x
    x = 121,837.87/375.22
  6. Step 6: Final answer
    x = 324.71

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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.