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Finding the Fourth Proportional to 236.96, 353.70 and 219.59

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Solution

The fourth proportional to 236.96, 353.70 and 219.59 is: 327.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.96 : 353.70 = 219.59 : x
  2. Step 2: Convert to fraction form
    236.96/353.70 = 219.59/x
  3. Step 3: Cross multiply
    236.96x = 353.70 × 219.59
  4. Step 4: Simplify right side
    236.96x = 77,668.10
  5. Step 5: Solve for x
    x = 77,668.10/236.96
  6. Step 6: Final answer
    x = 327.77

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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.