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Finding the Fourth Proportional to 323.70, 482.94 and 308.24

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Solution

The fourth proportional to 323.70, 482.94 and 308.24 is: 459.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.70 : 482.94 = 308.24 : x
  2. Step 2: Convert to fraction form
    323.70/482.94 = 308.24/x
  3. Step 3: Cross multiply
    323.70x = 482.94 × 308.24
  4. Step 4: Simplify right side
    323.70x = 148,859.88
  5. Step 5: Solve for x
    x = 148,859.88/323.70
  6. Step 6: Final answer
    x = 459.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.