Finding the Fourth Proportional to 196.18, 270.83 and 151.82

Step by Step Solution

1. Step 1: Write the proportion equation
   196.18 : 270.83 = 151.82 : x
2. Step 2: Convert to fraction form
   196.18/270.83 = 151.82/x
3. Step 3: Cross multiply
   196.18x = 270.83 × 151.82
4. Step 4: Simplify right side
   196.18x = 41,116.31
5. Step 5: Solve for x
   x = 41,116.31/196.18
6. Step 6: Final answer
   x = 209.59