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Finding the Fourth Proportional to 155.58, 232.23 and 132.49

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Solution

The fourth proportional to 155.58, 232.23 and 132.49 is: 197.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.58 : 232.23 = 132.49 : x
  2. Step 2: Convert to fraction form
    155.58/232.23 = 132.49/x
  3. Step 3: Cross multiply
    155.58x = 232.23 × 132.49
  4. Step 4: Simplify right side
    155.58x = 30,768.15
  5. Step 5: Solve for x
    x = 30,768.15/155.58
  6. Step 6: Final answer
    x = 197.76

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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.