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Finding the Fourth Proportional to 550.85, 760.17 and 326.79

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Solution

The fourth proportional to 550.85, 760.17 and 326.79 is: 450.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.85 : 760.17 = 326.79 : x
  2. Step 2: Convert to fraction form
    550.85/760.17 = 326.79/x
  3. Step 3: Cross multiply
    550.85x = 760.17 × 326.79
  4. Step 4: Simplify right side
    550.85x = 248,415.95
  5. Step 5: Solve for x
    x = 248,415.95/550.85
  6. Step 6: Final answer
    x = 450.97

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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.