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Finding the Fourth Proportional to 435.92, 653.87 and 219.44

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Solution

The fourth proportional to 435.92, 653.87 and 219.44 is: 329.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.92 : 653.87 = 219.44 : x
  2. Step 2: Convert to fraction form
    435.92/653.87 = 219.44/x
  3. Step 3: Cross multiply
    435.92x = 653.87 × 219.44
  4. Step 4: Simplify right side
    435.92x = 143,485.23
  5. Step 5: Solve for x
    x = 143,485.23/435.92
  6. Step 6: Final answer
    x = 329.15

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