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Finding the Fourth Proportional to 483.04, 721.48 and 327.68

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Solution

The fourth proportional to 483.04, 721.48 and 327.68 is: 489.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.04 : 721.48 = 327.68 : x
  2. Step 2: Convert to fraction form
    483.04/721.48 = 327.68/x
  3. Step 3: Cross multiply
    483.04x = 721.48 × 327.68
  4. Step 4: Simplify right side
    483.04x = 236,414.57
  5. Step 5: Solve for x
    x = 236,414.57/483.04
  6. Step 6: Final answer
    x = 489.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.