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Finding the Fourth Proportional to 236.52, 326.52 and 197.64

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Solution

The fourth proportional to 236.52, 326.52 and 197.64 is: 272.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.52 : 326.52 = 197.64 : x
  2. Step 2: Convert to fraction form
    236.52/326.52 = 197.64/x
  3. Step 3: Cross multiply
    236.52x = 326.52 × 197.64
  4. Step 4: Simplify right side
    236.52x = 64,533.41
  5. Step 5: Solve for x
    x = 64,533.41/236.52
  6. Step 6: Final answer
    x = 272.85

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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.