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Finding the Fourth Proportional to 323.98, 447.24 and 192.94

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Solution

The fourth proportional to 323.98, 447.24 and 192.94 is: 266.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.98 : 447.24 = 192.94 : x
  2. Step 2: Convert to fraction form
    323.98/447.24 = 192.94/x
  3. Step 3: Cross multiply
    323.98x = 447.24 × 192.94
  4. Step 4: Simplify right side
    323.98x = 86,290.49
  5. Step 5: Solve for x
    x = 86,290.49/323.98
  6. Step 6: Final answer
    x = 266.35

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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.