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Finding the Fourth Proportional to 269.02, 371.26 and 158.48

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Solution

The fourth proportional to 269.02, 371.26 and 158.48 is: 218.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.02 : 371.26 = 158.48 : x
  2. Step 2: Convert to fraction form
    269.02/371.26 = 158.48/x
  3. Step 3: Cross multiply
    269.02x = 371.26 × 158.48
  4. Step 4: Simplify right side
    269.02x = 58,837.28
  5. Step 5: Solve for x
    x = 58,837.28/269.02
  6. Step 6: Final answer
    x = 218.71

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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.