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Finding the Fourth Proportional to 326.81, 451.03 and 194.08

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Solution

The fourth proportional to 326.81, 451.03 and 194.08 is: 267.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.81 : 451.03 = 194.08 : x
  2. Step 2: Convert to fraction form
    326.81/451.03 = 194.08/x
  3. Step 3: Cross multiply
    326.81x = 451.03 × 194.08
  4. Step 4: Simplify right side
    326.81x = 87,535.90
  5. Step 5: Solve for x
    x = 87,535.90/326.81
  6. Step 6: Final answer
    x = 267.85

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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.