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Finding the Fourth Proportional to 550.68, 758.34 and 480.62

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Solution

The fourth proportional to 550.68, 758.34 and 480.62 is: 661.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.68 : 758.34 = 480.62 : x
  2. Step 2: Convert to fraction form
    550.68/758.34 = 480.62/x
  3. Step 3: Cross multiply
    550.68x = 758.34 × 480.62
  4. Step 4: Simplify right side
    550.68x = 364,469.58
  5. Step 5: Solve for x
    x = 364,469.58/550.68
  6. Step 6: Final answer
    x = 661.85

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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.