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Finding the Fourth Proportional to 132.19, 198.29 and 36

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Solution

The fourth proportional to 132.19, 198.29 and 36 is: 54.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.19 : 198.29 = 36 : x
  2. Step 2: Convert to fraction form
    132.19/198.29 = 36/x
  3. Step 3: Cross multiply
    132.19x = 198.29 × 36
  4. Step 4: Simplify right side
    132.19x = 7,138.53
  5. Step 5: Solve for x
    x = 7,138.53/132.19
  6. Step 6: Final answer
    x = 54.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.