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Finding the Fourth Proportional to 517.19, 775.43 and 270.24

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Solution

The fourth proportional to 517.19, 775.43 and 270.24 is: 405.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    517.19 : 775.43 = 270.24 : x
  2. Step 2: Convert to fraction form
    517.19/775.43 = 270.24/x
  3. Step 3: Cross multiply
    517.19x = 775.43 × 270.24
  4. Step 4: Simplify right side
    517.19x = 209,551.87
  5. Step 5: Solve for x
    x = 209,551.87/517.19
  6. Step 6: Final answer
    x = 405.17

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