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Finding the Fourth Proportional to 197.33, 295.87 and 99.80

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Solution

The fourth proportional to 197.33, 295.87 and 99.80 is: 149.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.33 : 295.87 = 99.80 : x
  2. Step 2: Convert to fraction form
    197.33/295.87 = 99.80/x
  3. Step 3: Cross multiply
    197.33x = 295.87 × 99.80
  4. Step 4: Simplify right side
    197.33x = 29,527.33
  5. Step 5: Solve for x
    x = 29,527.33/197.33
  6. Step 6: Final answer
    x = 149.63

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