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Finding the Fourth Proportional to 443.02, 664.56 and 154.36

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Solution

The fourth proportional to 443.02, 664.56 and 154.36 is: 231.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    443.02 : 664.56 = 154.36 : x
  2. Step 2: Convert to fraction form
    443.02/664.56 = 154.36/x
  3. Step 3: Cross multiply
    443.02x = 664.56 × 154.36
  4. Step 4: Simplify right side
    443.02x = 102,581.48
  5. Step 5: Solve for x
    x = 102,581.48/443.02
  6. Step 6: Final answer
    x = 231.55

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