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Finding the Fourth Proportional to 323.37, 486.32 and 262.62

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Solution

The fourth proportional to 323.37, 486.32 and 262.62 is: 394.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.37 : 486.32 = 262.62 : x
  2. Step 2: Convert to fraction form
    323.37/486.32 = 262.62/x
  3. Step 3: Cross multiply
    323.37x = 486.32 × 262.62
  4. Step 4: Simplify right side
    323.37x = 127,716.05
  5. Step 5: Solve for x
    x = 127,716.05/323.37
  6. Step 6: Final answer
    x = 394.95

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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.