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Finding the Fourth Proportional to 445.02, 667.46 and 282.20

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Solution

The fourth proportional to 445.02, 667.46 and 282.20 is: 423.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.02 : 667.46 = 282.20 : x
  2. Step 2: Convert to fraction form
    445.02/667.46 = 282.20/x
  3. Step 3: Cross multiply
    445.02x = 667.46 × 282.20
  4. Step 4: Simplify right side
    445.02x = 188,357.21
  5. Step 5: Solve for x
    x = 188,357.21/445.02
  6. Step 6: Final answer
    x = 423.26

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