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Finding the Fourth Proportional to 368.02, 551.85 and 205.66

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Solution

The fourth proportional to 368.02, 551.85 and 205.66 is: 308.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.02 : 551.85 = 205.66 : x
  2. Step 2: Convert to fraction form
    368.02/551.85 = 205.66/x
  3. Step 3: Cross multiply
    368.02x = 551.85 × 205.66
  4. Step 4: Simplify right side
    368.02x = 113,493.47
  5. Step 5: Solve for x
    x = 113,493.47/368.02
  6. Step 6: Final answer
    x = 308.39

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