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Finding the Fourth Proportional to 550.83, 826.12 and 319.54

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Solution

The fourth proportional to 550.83, 826.12 and 319.54 is: 479.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.83 : 826.12 = 319.54 : x
  2. Step 2: Convert to fraction form
    550.83/826.12 = 319.54/x
  3. Step 3: Cross multiply
    550.83x = 826.12 × 319.54
  4. Step 4: Simplify right side
    550.83x = 263,978.38
  5. Step 5: Solve for x
    x = 263,978.38/550.83
  6. Step 6: Final answer
    x = 479.24

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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.