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Finding the Fourth Proportional to 271.79, 375.09 and 166.85

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Solution

The fourth proportional to 271.79, 375.09 and 166.85 is: 230.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.79 : 375.09 = 166.85 : x
  2. Step 2: Convert to fraction form
    271.79/375.09 = 166.85/x
  3. Step 3: Cross multiply
    271.79x = 375.09 × 166.85
  4. Step 4: Simplify right side
    271.79x = 62,581.89
  5. Step 5: Solve for x
    x = 62,581.89/271.79
  6. Step 6: Final answer
    x = 230.26

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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.