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Finding the Fourth Proportional to 236.18, 354.28 and 227.90

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Solution

The fourth proportional to 236.18, 354.28 and 227.90 is: 341.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.18 : 354.28 = 227.90 : x
  2. Step 2: Convert to fraction form
    236.18/354.28 = 227.90/x
  3. Step 3: Cross multiply
    236.18x = 354.28 × 227.90
  4. Step 4: Simplify right side
    236.18x = 80,740.41
  5. Step 5: Solve for x
    x = 80,740.41/236.18
  6. Step 6: Final answer
    x = 341.86

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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.