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Finding the Fourth Proportional to 236.71, 356.81 and 196.39

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Solution

The fourth proportional to 236.71, 356.81 and 196.39 is: 296.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.71 : 356.81 = 196.39 : x
  2. Step 2: Convert to fraction form
    236.71/356.81 = 196.39/x
  3. Step 3: Cross multiply
    236.71x = 356.81 × 196.39
  4. Step 4: Simplify right side
    236.71x = 70,072.48
  5. Step 5: Solve for x
    x = 70,072.48/236.71
  6. Step 6: Final answer
    x = 296.03

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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.