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Finding the Fourth Proportional to 550.32, 759.33 and 329.19

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Solution

The fourth proportional to 550.32, 759.33 and 329.19 is: 454.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.32 : 759.33 = 329.19 : x
  2. Step 2: Convert to fraction form
    550.32/759.33 = 329.19/x
  3. Step 3: Cross multiply
    550.32x = 759.33 × 329.19
  4. Step 4: Simplify right side
    550.32x = 249,963.84
  5. Step 5: Solve for x
    x = 249,963.84/550.32
  6. Step 6: Final answer
    x = 454.22

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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.