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Finding the Fourth Proportional to 483.39, 667.31 and 326.16

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Solution

The fourth proportional to 483.39, 667.31 and 326.16 is: 450.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.39 : 667.31 = 326.16 : x
  2. Step 2: Convert to fraction form
    483.39/667.31 = 326.16/x
  3. Step 3: Cross multiply
    483.39x = 667.31 × 326.16
  4. Step 4: Simplify right side
    483.39x = 217,648.20
  5. Step 5: Solve for x
    x = 217,648.20/483.39
  6. Step 6: Final answer
    x = 450.25

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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.