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Finding the Fourth Proportional to 271.28, 372.18 and 269.04

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Solution

The fourth proportional to 271.28, 372.18 and 269.04 is: 369.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.28 : 372.18 = 269.04 : x
  2. Step 2: Convert to fraction form
    271.28/372.18 = 269.04/x
  3. Step 3: Cross multiply
    271.28x = 372.18 × 269.04
  4. Step 4: Simplify right side
    271.28x = 100,131.31
  5. Step 5: Solve for x
    x = 100,131.31/271.28
  6. Step 6: Final answer
    x = 369.11

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.