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Finding the Fourth Proportional to 347,745.20, 521,642.10 and 137,355.80

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Solution

The fourth proportional to 347,745.20, 521,642.10 and 137,355.80 is: 206,043.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,745.20 : 521,642.10 = 137,355.80 : x
  2. Step 2: Convert to fraction form
    347,745.20/521,642.10 = 137,355.80/x
  3. Step 3: Cross multiply
    347,745.20x = 521,642.10 × 137,355.80
  4. Step 4: Simplify right side
    347,745.20x = 71,650,567,959.18
  5. Step 5: Solve for x
    x = 71,650,567,959.18/347,745.20
  6. Step 6: Final answer
    x = 206,043.30

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