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Finding the Fourth Proportional to 243.08, 335.44 and 132.55

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Solution

The fourth proportional to 243.08, 335.44 and 132.55 is: 182.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.08 : 335.44 = 132.55 : x
  2. Step 2: Convert to fraction form
    243.08/335.44 = 132.55/x
  3. Step 3: Cross multiply
    243.08x = 335.44 × 132.55
  4. Step 4: Simplify right side
    243.08x = 44,462.75
  5. Step 5: Solve for x
    x = 44,462.75/243.08
  6. Step 6: Final answer
    x = 182.92

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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.