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Finding the Fourth Proportional to 404.75, 606.95 and 199.38

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Solution

The fourth proportional to 404.75, 606.95 and 199.38 is: 298.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.75 : 606.95 = 199.38 : x
  2. Step 2: Convert to fraction form
    404.75/606.95 = 199.38/x
  3. Step 3: Cross multiply
    404.75x = 606.95 × 199.38
  4. Step 4: Simplify right side
    404.75x = 121,012.69
  5. Step 5: Solve for x
    x = 121,012.69/404.75
  6. Step 6: Final answer
    x = 298.99

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