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Finding the Fourth Proportional to 364.64, 503.21 and 198.86

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Solution

The fourth proportional to 364.64, 503.21 and 198.86 is: 274.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.64 : 503.21 = 198.86 : x
  2. Step 2: Convert to fraction form
    364.64/503.21 = 198.86/x
  3. Step 3: Cross multiply
    364.64x = 503.21 × 198.86
  4. Step 4: Simplify right side
    364.64x = 100,070.44
  5. Step 5: Solve for x
    x = 100,070.44/364.64
  6. Step 6: Final answer
    x = 274.43

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