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Finding the Fourth Proportional to 159.52, 237.97 and 155.11

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Solution

The fourth proportional to 159.52, 237.97 and 155.11 is: 231.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.52 : 237.97 = 155.11 : x
  2. Step 2: Convert to fraction form
    159.52/237.97 = 155.11/x
  3. Step 3: Cross multiply
    159.52x = 237.97 × 155.11
  4. Step 4: Simplify right side
    159.52x = 36,911.53
  5. Step 5: Solve for x
    x = 36,911.53/159.52
  6. Step 6: Final answer
    x = 231.39

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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.