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Finding the Fourth Proportional to 450.17, 675.28 and 329.20

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Solution

The fourth proportional to 450.17, 675.28 and 329.20 is: 493.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.17 : 675.28 = 329.20 : x
  2. Step 2: Convert to fraction form
    450.17/675.28 = 329.20/x
  3. Step 3: Cross multiply
    450.17x = 675.28 × 329.20
  4. Step 4: Simplify right side
    450.17x = 222,298.80
  5. Step 5: Solve for x
    x = 222,298.80/450.17
  6. Step 6: Final answer
    x = 493.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.