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Finding the Fourth Proportional to 159.66, 237.71 and 158.85

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Solution

The fourth proportional to 159.66, 237.71 and 158.85 is: 236.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.66 : 237.71 = 158.85 : x
  2. Step 2: Convert to fraction form
    159.66/237.71 = 158.85/x
  3. Step 3: Cross multiply
    159.66x = 237.71 × 158.85
  4. Step 4: Simplify right side
    159.66x = 37,760.63
  5. Step 5: Solve for x
    x = 37,760.63/159.66
  6. Step 6: Final answer
    x = 236.51

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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.