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Finding the Fourth Proportional to 483.59, 667.24 and 308.96

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Solution

The fourth proportional to 483.59, 667.24 and 308.96 is: 426.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.59 : 667.24 = 308.96 : x
  2. Step 2: Convert to fraction form
    483.59/667.24 = 308.96/x
  3. Step 3: Cross multiply
    483.59x = 667.24 × 308.96
  4. Step 4: Simplify right side
    483.59x = 206,150.47
  5. Step 5: Solve for x
    x = 206,150.47/483.59
  6. Step 6: Final answer
    x = 426.29

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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.