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Finding the Fourth Proportional to 236.12, 325.80 and 201.28

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Solution

The fourth proportional to 236.12, 325.80 and 201.28 is: 277.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.12 : 325.80 = 201.28 : x
  2. Step 2: Convert to fraction form
    236.12/325.80 = 201.28/x
  3. Step 3: Cross multiply
    236.12x = 325.80 × 201.28
  4. Step 4: Simplify right side
    236.12x = 65,577.02
  5. Step 5: Solve for x
    x = 65,577.02/236.12
  6. Step 6: Final answer
    x = 277.73

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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.