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Finding the Fourth Proportional to 202,978.58, 280,042.16 and 118,025.78

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Solution

The fourth proportional to 202,978.58, 280,042.16 and 118,025.78 is: 162,835.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,978.58 : 280,042.16 = 118,025.78 : x
  2. Step 2: Convert to fraction form
    202,978.58/280,042.16 = 118,025.78/x
  3. Step 3: Cross multiply
    202,978.58x = 280,042.16 × 118,025.78
  4. Step 4: Simplify right side
    202,978.58x = 33,052,194,366.88
  5. Step 5: Solve for x
    x = 33,052,194,366.88/202,978.58
  6. Step 6: Final answer
    x = 162,835.87

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