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Finding the Fourth Proportional to 458.56, 632.54 and 327.76

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Solution

The fourth proportional to 458.56, 632.54 and 327.76 is: 452.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.56 : 632.54 = 327.76 : x
  2. Step 2: Convert to fraction form
    458.56/632.54 = 327.76/x
  3. Step 3: Cross multiply
    458.56x = 632.54 × 327.76
  4. Step 4: Simplify right side
    458.56x = 207,321.31
  5. Step 5: Solve for x
    x = 207,321.31/458.56
  6. Step 6: Final answer
    x = 452.11

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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.