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Finding the Fourth Proportional to 236.74, 356.82 and 223.50

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Solution

The fourth proportional to 236.74, 356.82 and 223.50 is: 336.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.74 : 356.82 = 223.50 : x
  2. Step 2: Convert to fraction form
    236.74/356.82 = 223.50/x
  3. Step 3: Cross multiply
    236.74x = 356.82 × 223.50
  4. Step 4: Simplify right side
    236.74x = 79,749.27
  5. Step 5: Solve for x
    x = 79,749.27/236.74
  6. Step 6: Final answer
    x = 336.86

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.