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Finding the Fourth Proportional to 369.94, 511.50 and 323.80

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Solution

The fourth proportional to 369.94, 511.50 and 323.80 is: 447.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.94 : 511.50 = 323.80 : x
  2. Step 2: Convert to fraction form
    369.94/511.50 = 323.80/x
  3. Step 3: Cross multiply
    369.94x = 511.50 × 323.80
  4. Step 4: Simplify right side
    369.94x = 165,623.70
  5. Step 5: Solve for x
    x = 165,623.70/369.94
  6. Step 6: Final answer
    x = 447.70

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