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Finding the Fourth Proportional to 236.50, 354.23 and 133.73

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Solution

The fourth proportional to 236.50, 354.23 and 133.73 is: 200.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.50 : 354.23 = 133.73 : x
  2. Step 2: Convert to fraction form
    236.50/354.23 = 133.73/x
  3. Step 3: Cross multiply
    236.50x = 354.23 × 133.73
  4. Step 4: Simplify right side
    236.50x = 47,371.18
  5. Step 5: Solve for x
    x = 47,371.18/236.50
  6. Step 6: Final answer
    x = 200.30

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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.