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Finding the Fourth Proportional to 323.75, 446.49 and 236.40

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Solution

The fourth proportional to 323.75, 446.49 and 236.40 is: 326.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.75 : 446.49 = 236.40 : x
  2. Step 2: Convert to fraction form
    323.75/446.49 = 236.40/x
  3. Step 3: Cross multiply
    323.75x = 446.49 × 236.40
  4. Step 4: Simplify right side
    323.75x = 105,550.24
  5. Step 5: Solve for x
    x = 105,550.24/323.75
  6. Step 6: Final answer
    x = 326.03

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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.