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Finding the Fourth Proportional to 484.25, 667.85 and 326.84

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Solution

The fourth proportional to 484.25, 667.85 and 326.84 is: 450.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.25 : 667.85 = 326.84 : x
  2. Step 2: Convert to fraction form
    484.25/667.85 = 326.84/x
  3. Step 3: Cross multiply
    484.25x = 667.85 × 326.84
  4. Step 4: Simplify right side
    484.25x = 218,275.12
  5. Step 5: Solve for x
    x = 218,275.12/484.25
  6. Step 6: Final answer
    x = 450.75

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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.