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Finding the Fourth Proportional to 483.20, 724.79 and 194.63

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Solution

The fourth proportional to 483.20, 724.79 and 194.63 is: 291.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.20 : 724.79 = 194.63 : x
  2. Step 2: Convert to fraction form
    483.20/724.79 = 194.63/x
  3. Step 3: Cross multiply
    483.20x = 724.79 × 194.63
  4. Step 4: Simplify right side
    483.20x = 141,061.28
  5. Step 5: Solve for x
    x = 141,061.28/483.20
  6. Step 6: Final answer
    x = 291.93

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