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Finding the Fourth Proportional to 445.41, 668.04 and 120.71

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Solution

The fourth proportional to 445.41, 668.04 and 120.71 is: 181.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.41 : 668.04 = 120.71 : x
  2. Step 2: Convert to fraction form
    445.41/668.04 = 120.71/x
  3. Step 3: Cross multiply
    445.41x = 668.04 × 120.71
  4. Step 4: Simplify right side
    445.41x = 80,635.77
  5. Step 5: Solve for x
    x = 80,635.77/445.41
  6. Step 6: Final answer
    x = 181.04

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