Home / 231,352.20-347,028.30-206,857.80

Finding the Fourth Proportional to 231,352.20, 347,028.30 and 206,857.80

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Solution

The fourth proportional to 231,352.20, 347,028.30 and 206,857.80 is: 310,286.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,352.20 : 347,028.30 = 206,857.80 : x
  2. Step 2: Convert to fraction form
    231,352.20/347,028.30 = 206,857.80/x
  3. Step 3: Cross multiply
    231,352.20x = 347,028.30 × 206,857.80
  4. Step 4: Simplify right side
    231,352.20x = 71,785,510,675.74
  5. Step 5: Solve for x
    x = 71,785,510,675.74/231,352.20
  6. Step 6: Final answer
    x = 310,286.70

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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.