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Finding the Fourth Proportional to 220.85, 330.82 and 184.20

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Solution

The fourth proportional to 220.85, 330.82 and 184.20 is: 275.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    220.85 : 330.82 = 184.20 : x
  2. Step 2: Convert to fraction form
    220.85/330.82 = 184.20/x
  3. Step 3: Cross multiply
    220.85x = 330.82 × 184.20
  4. Step 4: Simplify right side
    220.85x = 60,935.34
  5. Step 5: Solve for x
    x = 60,935.34/220.85
  6. Step 6: Final answer
    x = 275.91

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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.