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Finding the Fourth Proportional to 375.09, 517.68 and 270.53

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Solution

The fourth proportional to 375.09, 517.68 and 270.53 is: 373.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.09 : 517.68 = 270.53 : x
  2. Step 2: Convert to fraction form
    375.09/517.68 = 270.53/x
  3. Step 3: Cross multiply
    375.09x = 517.68 × 270.53
  4. Step 4: Simplify right side
    375.09x = 140,045.38
  5. Step 5: Solve for x
    x = 140,045.38/375.09
  6. Step 6: Final answer
    x = 373.36

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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.