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Finding the Fourth Proportional to 666.71, 920.06 and 367.96

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Solution

The fourth proportional to 666.71, 920.06 and 367.96 is: 507.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    666.71 : 920.06 = 367.96 : x
  2. Step 2: Convert to fraction form
    666.71/920.06 = 367.96/x
  3. Step 3: Cross multiply
    666.71x = 920.06 × 367.96
  4. Step 4: Simplify right side
    666.71x = 338,546.66
  5. Step 5: Solve for x
    x = 338,546.66/666.71
  6. Step 6: Final answer
    x = 507.79

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