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Finding the Fourth Proportional to 186.11, 256.52 and 133.52

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Solution

The fourth proportional to 186.11, 256.52 and 133.52 is: 184.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.11 : 256.52 = 133.52 : x
  2. Step 2: Convert to fraction form
    186.11/256.52 = 133.52/x
  3. Step 3: Cross multiply
    186.11x = 256.52 × 133.52
  4. Step 4: Simplify right side
    186.11x = 34,248.85
  5. Step 5: Solve for x
    x = 34,248.85/186.11
  6. Step 6: Final answer
    x = 184.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.