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Finding the Fourth Proportional to 159.68, 237.84 and 133.44

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Solution

The fourth proportional to 159.68, 237.84 and 133.44 is: 198.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.68 : 237.84 = 133.44 : x
  2. Step 2: Convert to fraction form
    159.68/237.84 = 133.44/x
  3. Step 3: Cross multiply
    159.68x = 237.84 × 133.44
  4. Step 4: Simplify right side
    159.68x = 31,737.37
  5. Step 5: Solve for x
    x = 31,737.37/159.68
  6. Step 6: Final answer
    x = 198.76

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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.