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Finding the Fourth Proportional to 323.41, 446.12 and 206.98

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Solution

The fourth proportional to 323.41, 446.12 and 206.98 is: 285.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.41 : 446.12 = 206.98 : x
  2. Step 2: Convert to fraction form
    323.41/446.12 = 206.98/x
  3. Step 3: Cross multiply
    323.41x = 446.12 × 206.98
  4. Step 4: Simplify right side
    323.41x = 92,337.92
  5. Step 5: Solve for x
    x = 92,337.92/323.41
  6. Step 6: Final answer
    x = 285.51

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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.