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Finding the Fourth Proportional to 249.54, 371.79 and 235.56

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Solution

The fourth proportional to 249.54, 371.79 and 235.56 is: 350.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.54 : 371.79 = 235.56 : x
  2. Step 2: Convert to fraction form
    249.54/371.79 = 235.56/x
  3. Step 3: Cross multiply
    249.54x = 371.79 × 235.56
  4. Step 4: Simplify right side
    249.54x = 87,578.85
  5. Step 5: Solve for x
    x = 87,578.85/249.54
  6. Step 6: Final answer
    x = 350.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.