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Finding the Fourth Proportional to 329.36, 454.56 and 205.11

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Solution

The fourth proportional to 329.36, 454.56 and 205.11 is: 283.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.36 : 454.56 = 205.11 : x
  2. Step 2: Convert to fraction form
    329.36/454.56 = 205.11/x
  3. Step 3: Cross multiply
    329.36x = 454.56 × 205.11
  4. Step 4: Simplify right side
    329.36x = 93,234.80
  5. Step 5: Solve for x
    x = 93,234.80/329.36
  6. Step 6: Final answer
    x = 283.08

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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.