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Finding the Fourth Proportional to 511.21, 766.94 and 186.58

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Solution

The fourth proportional to 511.21, 766.94 and 186.58 is: 279.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.21 : 766.94 = 186.58 : x
  2. Step 2: Convert to fraction form
    511.21/766.94 = 186.58/x
  3. Step 3: Cross multiply
    511.21x = 766.94 × 186.58
  4. Step 4: Simplify right side
    511.21x = 143,094.73
  5. Step 5: Solve for x
    x = 143,094.73/511.21
  6. Step 6: Final answer
    x = 279.91

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