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Finding the Fourth Proportional to 162.95, 243.27 and 132.57

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Solution

The fourth proportional to 162.95, 243.27 and 132.57 is: 197.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.95 : 243.27 = 132.57 : x
  2. Step 2: Convert to fraction form
    162.95/243.27 = 132.57/x
  3. Step 3: Cross multiply
    162.95x = 243.27 × 132.57
  4. Step 4: Simplify right side
    162.95x = 32,250.30
  5. Step 5: Solve for x
    x = 32,250.30/162.95
  6. Step 6: Final answer
    x = 197.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.