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Finding the Fourth Proportional to 445.75, 668.91 and 189.25

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Solution

The fourth proportional to 445.75, 668.91 and 189.25 is: 284.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.75 : 668.91 = 189.25 : x
  2. Step 2: Convert to fraction form
    445.75/668.91 = 189.25/x
  3. Step 3: Cross multiply
    445.75x = 668.91 × 189.25
  4. Step 4: Simplify right side
    445.75x = 126,591.22
  5. Step 5: Solve for x
    x = 126,591.22/445.75
  6. Step 6: Final answer
    x = 284.00

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