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Finding the Fourth Proportional to 243.02, 335.38 and 132.50

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Solution

The fourth proportional to 243.02, 335.38 and 132.50 is: 182.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.02 : 335.38 = 132.50 : x
  2. Step 2: Convert to fraction form
    243.02/335.38 = 132.50/x
  3. Step 3: Cross multiply
    243.02x = 335.38 × 132.50
  4. Step 4: Simplify right side
    243.02x = 44,437.85
  5. Step 5: Solve for x
    x = 44,437.85/243.02
  6. Step 6: Final answer
    x = 182.86

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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.