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Finding the Fourth Proportional to 375.11, 517.61 and 209.33

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Solution

The fourth proportional to 375.11, 517.61 and 209.33 is: 288.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.11 : 517.61 = 209.33 : x
  2. Step 2: Convert to fraction form
    375.11/517.61 = 209.33/x
  3. Step 3: Cross multiply
    375.11x = 517.61 × 209.33
  4. Step 4: Simplify right side
    375.11x = 108,347.67
  5. Step 5: Solve for x
    x = 108,347.67/375.11
  6. Step 6: Final answer
    x = 288.85

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