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Finding the Fourth Proportional to 202,937.78, 280,035.07 and 137,393.28

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Solution

The fourth proportional to 202,937.78, 280,035.07 and 137,393.28 is: 189,589.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,937.78 : 280,035.07 = 137,393.28 : x
  2. Step 2: Convert to fraction form
    202,937.78/280,035.07 = 137,393.28/x
  3. Step 3: Cross multiply
    202,937.78x = 280,035.07 × 137,393.28
  4. Step 4: Simplify right side
    202,937.78x = 38,474,936,438.85
  5. Step 5: Solve for x
    x = 38,474,936,438.85/202,937.78
  6. Step 6: Final answer
    x = 189,589.81

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