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Finding the Fourth Proportional to 236.40, 356.32 and 226.64

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Solution

The fourth proportional to 236.40, 356.32 and 226.64 is: 341.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.40 : 356.32 = 226.64 : x
  2. Step 2: Convert to fraction form
    236.40/356.32 = 226.64/x
  3. Step 3: Cross multiply
    236.40x = 356.32 × 226.64
  4. Step 4: Simplify right side
    236.40x = 80,756.36
  5. Step 5: Solve for x
    x = 80,756.36/236.40
  6. Step 6: Final answer
    x = 341.61

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.