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Finding the Fourth Proportional to 351,213.60, 525,610.80 and 211,072.80

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Solution

The fourth proportional to 351,213.60, 525,610.80 and 211,072.80 is: 315,882.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,213.60 : 525,610.80 = 211,072.80 : x
  2. Step 2: Convert to fraction form
    351,213.60/525,610.80 = 211,072.80/x
  3. Step 3: Cross multiply
    351,213.60x = 525,610.80 × 211,072.80
  4. Step 4: Simplify right side
    351,213.60x = 110,942,143,266.24
  5. Step 5: Solve for x
    x = 110,942,143,266.24/351,213.60
  6. Step 6: Final answer
    x = 315,882.25

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