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Finding the Fourth Proportional to 186.08, 279.72 and 132.35

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Solution

The fourth proportional to 186.08, 279.72 and 132.35 is: 198.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.08 : 279.72 = 132.35 : x
  2. Step 2: Convert to fraction form
    186.08/279.72 = 132.35/x
  3. Step 3: Cross multiply
    186.08x = 279.72 × 132.35
  4. Step 4: Simplify right side
    186.08x = 37,019.54
  5. Step 5: Solve for x
    x = 37,019.54/186.08
  6. Step 6: Final answer
    x = 198.95

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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.