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Finding the Fourth Proportional to 192,385.80, 288,578.70 and 156,956.40

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Solution

The fourth proportional to 192,385.80, 288,578.70 and 156,956.40 is: 235,434.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,385.80 : 288,578.70 = 156,956.40 : x
  2. Step 2: Convert to fraction form
    192,385.80/288,578.70 = 156,956.40/x
  3. Step 3: Cross multiply
    192,385.80x = 288,578.70 × 156,956.40
  4. Step 4: Simplify right side
    192,385.80x = 45,294,273,868.68
  5. Step 5: Solve for x
    x = 45,294,273,868.68/192,385.80
  6. Step 6: Final answer
    x = 235,434.60

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