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Finding the Fourth Proportional to 367.84, 551.77 and 206.55

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Solution

The fourth proportional to 367.84, 551.77 and 206.55 is: 309.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.84 : 551.77 = 206.55 : x
  2. Step 2: Convert to fraction form
    367.84/551.77 = 206.55/x
  3. Step 3: Cross multiply
    367.84x = 551.77 × 206.55
  4. Step 4: Simplify right side
    367.84x = 113,968.09
  5. Step 5: Solve for x
    x = 113,968.09/367.84
  6. Step 6: Final answer
    x = 309.83

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