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Finding the Fourth Proportional to 232.83, 321.06 and 154.23

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Solution

The fourth proportional to 232.83, 321.06 and 154.23 is: 212.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.83 : 321.06 = 154.23 : x
  2. Step 2: Convert to fraction form
    232.83/321.06 = 154.23/x
  3. Step 3: Cross multiply
    232.83x = 321.06 × 154.23
  4. Step 4: Simplify right side
    232.83x = 49,517.08
  5. Step 5: Solve for x
    x = 49,517.08/232.83
  6. Step 6: Final answer
    x = 212.67

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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.