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Finding the Fourth Proportional to 323.18, 446.08 and 205.28

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Solution

The fourth proportional to 323.18, 446.08 and 205.28 is: 283.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.18 : 446.08 = 205.28 : x
  2. Step 2: Convert to fraction form
    323.18/446.08 = 205.28/x
  3. Step 3: Cross multiply
    323.18x = 446.08 × 205.28
  4. Step 4: Simplify right side
    323.18x = 91,571.30
  5. Step 5: Solve for x
    x = 91,571.30/323.18
  6. Step 6: Final answer
    x = 283.34

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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.