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Finding the Fourth Proportional to 271.13, 372.94 and 238.32

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Solution

The fourth proportional to 271.13, 372.94 and 238.32 is: 327.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.13 : 372.94 = 238.32 : x
  2. Step 2: Convert to fraction form
    271.13/372.94 = 238.32/x
  3. Step 3: Cross multiply
    271.13x = 372.94 × 238.32
  4. Step 4: Simplify right side
    271.13x = 88,878.47
  5. Step 5: Solve for x
    x = 88,878.47/271.13
  6. Step 6: Final answer
    x = 327.81

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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.