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Finding the Fourth Proportional to 323.33, 485.12 and 169.18

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Solution

The fourth proportional to 323.33, 485.12 and 169.18 is: 253.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.33 : 485.12 = 169.18 : x
  2. Step 2: Convert to fraction form
    323.33/485.12 = 169.18/x
  3. Step 3: Cross multiply
    323.33x = 485.12 × 169.18
  4. Step 4: Simplify right side
    323.33x = 82,072.60
  5. Step 5: Solve for x
    x = 82,072.60/323.33
  6. Step 6: Final answer
    x = 253.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.