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Finding the Fourth Proportional to 511.67, 767.43 and 186.96

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Solution

The fourth proportional to 511.67, 767.43 and 186.96 is: 280.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.67 : 767.43 = 186.96 : x
  2. Step 2: Convert to fraction form
    511.67/767.43 = 186.96/x
  3. Step 3: Cross multiply
    511.67x = 767.43 × 186.96
  4. Step 4: Simplify right side
    511.67x = 143,478.91
  5. Step 5: Solve for x
    x = 143,478.91/511.67
  6. Step 6: Final answer
    x = 280.41

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