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Finding the Fourth Proportional to 208,640.28, 312,881.85 and 75,487.62

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Solution

The fourth proportional to 208,640.28, 312,881.85 and 75,487.62 is: 113,203.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,640.28 : 312,881.85 = 75,487.62 : x
  2. Step 2: Convert to fraction form
    208,640.28/312,881.85 = 75,487.62/x
  3. Step 3: Cross multiply
    208,640.28x = 312,881.85 × 75,487.62
  4. Step 4: Simplify right side
    208,640.28x = 23,618,706,197.70
  5. Step 5: Solve for x
    x = 23,618,706,197.70/208,640.28
  6. Step 6: Final answer
    x = 113,203.00

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