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Finding the Fourth Proportional to 575.41, 863.11 and 142.57

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Solution

The fourth proportional to 575.41, 863.11 and 142.57 is: 213.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.41 : 863.11 = 142.57 : x
  2. Step 2: Convert to fraction form
    575.41/863.11 = 142.57/x
  3. Step 3: Cross multiply
    575.41x = 863.11 × 142.57
  4. Step 4: Simplify right side
    575.41x = 123,053.59
  5. Step 5: Solve for x
    x = 123,053.59/575.41
  6. Step 6: Final answer
    x = 213.85

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