Home / 231,623.20-347,629.20-113,395.60

Finding the Fourth Proportional to 231,623.20, 347,629.20 and 113,395.60

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Solution

The fourth proportional to 231,623.20, 347,629.20 and 113,395.60 is: 170,188.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,623.20 : 347,629.20 = 113,395.60 : x
  2. Step 2: Convert to fraction form
    231,623.20/347,629.20 = 113,395.60/x
  3. Step 3: Cross multiply
    231,623.20x = 347,629.20 × 113,395.60
  4. Step 4: Simplify right side
    231,623.20x = 39,419,621,711.52
  5. Step 5: Solve for x
    x = 39,419,621,711.52/231,623.20
  6. Step 6: Final answer
    x = 170,188.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.