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Finding the Fourth Proportional to 329.48, 454.54 and 205.06

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Solution

The fourth proportional to 329.48, 454.54 and 205.06 is: 282.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.48 : 454.54 = 205.06 : x
  2. Step 2: Convert to fraction form
    329.48/454.54 = 205.06/x
  3. Step 3: Cross multiply
    329.48x = 454.54 × 205.06
  4. Step 4: Simplify right side
    329.48x = 93,207.97
  5. Step 5: Solve for x
    x = 93,207.97/329.48
  6. Step 6: Final answer
    x = 282.89

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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.