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Finding the Fourth Proportional to 221.82, 332.82 and 106.34

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Solution

The fourth proportional to 221.82, 332.82 and 106.34 is: 159.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221.82 : 332.82 = 106.34 : x
  2. Step 2: Convert to fraction form
    221.82/332.82 = 106.34/x
  3. Step 3: Cross multiply
    221.82x = 332.82 × 106.34
  4. Step 4: Simplify right side
    221.82x = 35,392.08
  5. Step 5: Solve for x
    x = 35,392.08/221.82
  6. Step 6: Final answer
    x = 159.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.