Home / 208,849.20-313,273.80-68,589.60

Finding the Fourth Proportional to 208,849.20, 313,273.80 and 68,589.60

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Solution

The fourth proportional to 208,849.20, 313,273.80 and 68,589.60 is: 102,884.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,849.20 : 313,273.80 = 68,589.60 : x
  2. Step 2: Convert to fraction form
    208,849.20/313,273.80 = 68,589.60/x
  3. Step 3: Cross multiply
    208,849.20x = 313,273.80 × 68,589.60
  4. Step 4: Simplify right side
    208,849.20x = 21,487,324,632.48
  5. Step 5: Solve for x
    x = 21,487,324,632.48/208,849.20
  6. Step 6: Final answer
    x = 102,884.40

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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.