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Finding the Fourth Proportional to 345.94, 518.20 and 241.81

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Solution

The fourth proportional to 345.94, 518.20 and 241.81 is: 362.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    345.94 : 518.20 = 241.81 : x
  2. Step 2: Convert to fraction form
    345.94/518.20 = 241.81/x
  3. Step 3: Cross multiply
    345.94x = 518.20 × 241.81
  4. Step 4: Simplify right side
    345.94x = 125,305.94
  5. Step 5: Solve for x
    x = 125,305.94/345.94
  6. Step 6: Final answer
    x = 362.22

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