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Finding the Fourth Proportional to 329.44, 454.82 and 211.48

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Solution

The fourth proportional to 329.44, 454.82 and 211.48 is: 291.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.44 : 454.82 = 211.48 : x
  2. Step 2: Convert to fraction form
    329.44/454.82 = 211.48/x
  3. Step 3: Cross multiply
    329.44x = 454.82 × 211.48
  4. Step 4: Simplify right side
    329.44x = 96,185.33
  5. Step 5: Solve for x
    x = 96,185.33/329.44
  6. Step 6: Final answer
    x = 291.97

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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.