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Finding the Fourth Proportional to 251,999.40, 377,999.10 and 126,028.20

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Solution

The fourth proportional to 251,999.40, 377,999.10 and 126,028.20 is: 189,042.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,999.40 : 377,999.10 = 126,028.20 : x
  2. Step 2: Convert to fraction form
    251,999.40/377,999.10 = 126,028.20/x
  3. Step 3: Cross multiply
    251,999.40x = 377,999.10 × 126,028.20
  4. Step 4: Simplify right side
    251,999.40x = 47,638,546,174.62
  5. Step 5: Solve for x
    x = 47,638,546,174.62/251,999.40
  6. Step 6: Final answer
    x = 189,042.30

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