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Finding the Fourth Proportional to 375.54, 517.49 and 349.59

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Solution

The fourth proportional to 375.54, 517.49 and 349.59 is: 481.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.54 : 517.49 = 349.59 : x
  2. Step 2: Convert to fraction form
    375.54/517.49 = 349.59/x
  3. Step 3: Cross multiply
    375.54x = 517.49 × 349.59
  4. Step 4: Simplify right side
    375.54x = 180,907.58
  5. Step 5: Solve for x
    x = 180,907.58/375.54
  6. Step 6: Final answer
    x = 481.73

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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.