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Finding the Fourth Proportional to 323.96, 444.62 and 299.30

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Solution

The fourth proportional to 323.96, 444.62 and 299.30 is: 410.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.96 : 444.62 = 299.30 : x
  2. Step 2: Convert to fraction form
    323.96/444.62 = 299.30/x
  3. Step 3: Cross multiply
    323.96x = 444.62 × 299.30
  4. Step 4: Simplify right side
    323.96x = 133,073.29
  5. Step 5: Solve for x
    x = 133,073.29/323.96
  6. Step 6: Final answer
    x = 410.78

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.