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Finding the Fourth Proportional to 236.50, 326.98 and 226.30

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Solution

The fourth proportional to 236.50, 326.98 and 226.30 is: 312.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.50 : 326.98 = 226.30 : x
  2. Step 2: Convert to fraction form
    236.50/326.98 = 226.30/x
  3. Step 3: Cross multiply
    236.50x = 326.98 × 226.30
  4. Step 4: Simplify right side
    236.50x = 73,995.57
  5. Step 5: Solve for x
    x = 73,995.57/236.50
  6. Step 6: Final answer
    x = 312.88

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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.