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Finding the Fourth Proportional to 443, 611.36 and 288.02

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Solution

The fourth proportional to 443, 611.36 and 288.02 is: 397.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    443 : 611.36 = 288.02 : x
  2. Step 2: Convert to fraction form
    443/611.36 = 288.02/x
  3. Step 3: Cross multiply
    443x = 611.36 × 288.02
  4. Step 4: Simplify right side
    443x = 176,083.91
  5. Step 5: Solve for x
    x = 176,083.91/443
  6. Step 6: Final answer
    x = 397.48

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