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Finding the Fourth Proportional to 236.50, 355.21 and 200.26

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Solution

The fourth proportional to 236.50, 355.21 and 200.26 is: 300.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.50 : 355.21 = 200.26 : x
  2. Step 2: Convert to fraction form
    236.50/355.21 = 200.26/x
  3. Step 3: Cross multiply
    236.50x = 355.21 × 200.26
  4. Step 4: Simplify right side
    236.50x = 71,134.35
  5. Step 5: Solve for x
    x = 71,134.35/236.50
  6. Step 6: Final answer
    x = 300.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.