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Finding the Fourth Proportional to 232.83, 321.33 and 131.90

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Solution

The fourth proportional to 232.83, 321.33 and 131.90 is: 182.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.83 : 321.33 = 131.90 : x
  2. Step 2: Convert to fraction form
    232.83/321.33 = 131.90/x
  3. Step 3: Cross multiply
    232.83x = 321.33 × 131.90
  4. Step 4: Simplify right side
    232.83x = 42,382.77
  5. Step 5: Solve for x
    x = 42,382.77/232.83
  6. Step 6: Final answer
    x = 182.04

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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.