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Finding the Fourth Proportional to 550.52, 759.74 and 329.43

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Solution

The fourth proportional to 550.52, 759.74 and 329.43 is: 454.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.52 : 759.74 = 329.43 : x
  2. Step 2: Convert to fraction form
    550.52/759.74 = 329.43/x
  3. Step 3: Cross multiply
    550.52x = 759.74 × 329.43
  4. Step 4: Simplify right side
    550.52x = 250,279.25
  5. Step 5: Solve for x
    x = 250,279.25/550.52
  6. Step 6: Final answer
    x = 454.63

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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.