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Finding the Fourth Proportional to 236.98, 353.39 and 219.34

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Solution

The fourth proportional to 236.98, 353.39 and 219.34 is: 327.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.98 : 353.39 = 219.34 : x
  2. Step 2: Convert to fraction form
    236.98/353.39 = 219.34/x
  3. Step 3: Cross multiply
    236.98x = 353.39 × 219.34
  4. Step 4: Simplify right side
    236.98x = 77,512.56
  5. Step 5: Solve for x
    x = 77,512.56/236.98
  6. Step 6: Final answer
    x = 327.08

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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.