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Finding the Fourth Proportional to 493.52, 681.36 and 327.88

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Solution

The fourth proportional to 493.52, 681.36 and 327.88 is: 452.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.52 : 681.36 = 327.88 : x
  2. Step 2: Convert to fraction form
    493.52/681.36 = 327.88/x
  3. Step 3: Cross multiply
    493.52x = 681.36 × 327.88
  4. Step 4: Simplify right side
    493.52x = 223,400.91
  5. Step 5: Solve for x
    x = 223,400.91/493.52
  6. Step 6: Final answer
    x = 452.67

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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.