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Finding the Fourth Proportional to 550.54, 826.31 and 276.83

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Solution

The fourth proportional to 550.54, 826.31 and 276.83 is: 415.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.54 : 826.31 = 276.83 : x
  2. Step 2: Convert to fraction form
    550.54/826.31 = 276.83/x
  3. Step 3: Cross multiply
    550.54x = 826.31 × 276.83
  4. Step 4: Simplify right side
    550.54x = 228,743.96
  5. Step 5: Solve for x
    x = 228,743.96/550.54
  6. Step 6: Final answer
    x = 415.49

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.