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Finding the Fourth Proportional to 361.03, 498.19 and 213.64

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Solution

The fourth proportional to 361.03, 498.19 and 213.64 is: 294.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.03 : 498.19 = 213.64 : x
  2. Step 2: Convert to fraction form
    361.03/498.19 = 213.64/x
  3. Step 3: Cross multiply
    361.03x = 498.19 × 213.64
  4. Step 4: Simplify right side
    361.03x = 106,433.31
  5. Step 5: Solve for x
    x = 106,433.31/361.03
  6. Step 6: Final answer
    x = 294.80

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