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Finding the Fourth Proportional to 271.99, 375.15 and 173.71

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Solution

The fourth proportional to 271.99, 375.15 and 173.71 is: 239.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.99 : 375.15 = 173.71 : x
  2. Step 2: Convert to fraction form
    271.99/375.15 = 173.71/x
  3. Step 3: Cross multiply
    271.99x = 375.15 × 173.71
  4. Step 4: Simplify right side
    271.99x = 65,167.31
  5. Step 5: Solve for x
    x = 65,167.31/271.99
  6. Step 6: Final answer
    x = 239.59

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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.