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Finding the Fourth Proportional to 454.73, 682.22 and 330.26

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Solution

The fourth proportional to 454.73, 682.22 and 330.26 is: 495.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.73 : 682.22 = 330.26 : x
  2. Step 2: Convert to fraction form
    454.73/682.22 = 330.26/x
  3. Step 3: Cross multiply
    454.73x = 682.22 × 330.26
  4. Step 4: Simplify right side
    454.73x = 225,304.91
  5. Step 5: Solve for x
    x = 225,304.91/454.73
  6. Step 6: Final answer
    x = 495.48

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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.