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Finding the Fourth Proportional to 236.11, 325.78 and 148.73

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Solution

The fourth proportional to 236.11, 325.78 and 148.73 is: 205.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.11 : 325.78 = 148.73 : x
  2. Step 2: Convert to fraction form
    236.11/325.78 = 148.73/x
  3. Step 3: Cross multiply
    236.11x = 325.78 × 148.73
  4. Step 4: Simplify right side
    236.11x = 48,453.26
  5. Step 5: Solve for x
    x = 48,453.26/236.11
  6. Step 6: Final answer
    x = 205.21

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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.