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Finding the Fourth Proportional to 493.28, 680.59 and 327.44

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Solution

The fourth proportional to 493.28, 680.59 and 327.44 is: 451.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.28 : 680.59 = 327.44 : x
  2. Step 2: Convert to fraction form
    493.28/680.59 = 327.44/x
  3. Step 3: Cross multiply
    493.28x = 680.59 × 327.44
  4. Step 4: Simplify right side
    493.28x = 222,852.39
  5. Step 5: Solve for x
    x = 222,852.39/493.28
  6. Step 6: Final answer
    x = 451.78

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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.