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Finding the Fourth Proportional to 451.17, 675.81 and 288.36

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Solution

The fourth proportional to 451.17, 675.81 and 288.36 is: 431.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.17 : 675.81 = 288.36 : x
  2. Step 2: Convert to fraction form
    451.17/675.81 = 288.36/x
  3. Step 3: Cross multiply
    451.17x = 675.81 × 288.36
  4. Step 4: Simplify right side
    451.17x = 194,876.57
  5. Step 5: Solve for x
    x = 194,876.57/451.17
  6. Step 6: Final answer
    x = 431.94

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