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Finding the Fourth Proportional to 158.36, 236.24 and 132.85

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Solution

The fourth proportional to 158.36, 236.24 and 132.85 is: 198.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.36 : 236.24 = 132.85 : x
  2. Step 2: Convert to fraction form
    158.36/236.24 = 132.85/x
  3. Step 3: Cross multiply
    158.36x = 236.24 × 132.85
  4. Step 4: Simplify right side
    158.36x = 31,383.82
  5. Step 5: Solve for x
    x = 31,383.82/158.36
  6. Step 6: Final answer
    x = 198.18

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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.