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Finding the Fourth Proportional to 326.28, 450.22 and 193.48

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Solution

The fourth proportional to 326.28, 450.22 and 193.48 is: 266.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.28 : 450.22 = 193.48 : x
  2. Step 2: Convert to fraction form
    326.28/450.22 = 193.48/x
  3. Step 3: Cross multiply
    326.28x = 450.22 × 193.48
  4. Step 4: Simplify right side
    326.28x = 87,108.57
  5. Step 5: Solve for x
    x = 87,108.57/326.28
  6. Step 6: Final answer
    x = 266.97

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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.