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Finding the Fourth Proportional to 269.96, 371.01 and 238.68

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Solution

The fourth proportional to 269.96, 371.01 and 238.68 is: 328.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.96 : 371.01 = 238.68 : x
  2. Step 2: Convert to fraction form
    269.96/371.01 = 238.68/x
  3. Step 3: Cross multiply
    269.96x = 371.01 × 238.68
  4. Step 4: Simplify right side
    269.96x = 88,553.56
  5. Step 5: Solve for x
    x = 88,553.56/269.96
  6. Step 6: Final answer
    x = 328.03

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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.