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Finding the Fourth Proportional to 550.60, 827.12 and 480.16

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Solution

The fourth proportional to 550.60, 827.12 and 480.16 is: 721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.60 : 827.12 = 480.16 : x
  2. Step 2: Convert to fraction form
    550.60/827.12 = 480.16/x
  3. Step 3: Cross multiply
    550.60x = 827.12 × 480.16
  4. Step 4: Simplify right side
    550.60x = 397,149.94
  5. Step 5: Solve for x
    x = 397,149.94/550.60
  6. Step 6: Final answer
    x = 721.30

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Double scale
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1.5x scale

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.