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Finding the Fourth Proportional to 236.33, 352.73 and 221.07

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Solution

The fourth proportional to 236.33, 352.73 and 221.07 is: 329.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.33 : 352.73 = 221.07 : x
  2. Step 2: Convert to fraction form
    236.33/352.73 = 221.07/x
  3. Step 3: Cross multiply
    236.33x = 352.73 × 221.07
  4. Step 4: Simplify right side
    236.33x = 77,976.92
  5. Step 5: Solve for x
    x = 77,976.92/236.33
  6. Step 6: Final answer
    x = 329.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.