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Finding the Fourth Proportional to 192.18, 288.34 and 83.98

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Solution

The fourth proportional to 192.18, 288.34 and 83.98 is: 126.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.18 : 288.34 = 83.98 : x
  2. Step 2: Convert to fraction form
    192.18/288.34 = 83.98/x
  3. Step 3: Cross multiply
    192.18x = 288.34 × 83.98
  4. Step 4: Simplify right side
    192.18x = 24,214.79
  5. Step 5: Solve for x
    x = 24,214.79/192.18
  6. Step 6: Final answer
    x = 126.00

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