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Finding the Fourth Proportional to 458.88, 633 and 327.64

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Solution

The fourth proportional to 458.88, 633 and 327.64 is: 451.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.88 : 633 = 327.64 : x
  2. Step 2: Convert to fraction form
    458.88/633 = 327.64/x
  3. Step 3: Cross multiply
    458.88x = 633 × 327.64
  4. Step 4: Simplify right side
    458.88x = 207,396.12
  5. Step 5: Solve for x
    x = 207,396.12/458.88
  6. Step 6: Final answer
    x = 451.96

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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.