Home / 206,850.28-310,198.78-73,695.20

Finding the Fourth Proportional to 206,850.28, 310,198.78 and 73,695.20

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Solution

The fourth proportional to 206,850.28, 310,198.78 and 73,695.20 is: 110,515.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,850.28 : 310,198.78 = 73,695.20 : x
  2. Step 2: Convert to fraction form
    206,850.28/310,198.78 = 73,695.20/x
  3. Step 3: Cross multiply
    206,850.28x = 310,198.78 × 73,695.20
  4. Step 4: Simplify right side
    206,850.28x = 22,860,161,131.86
  5. Step 5: Solve for x
    x = 22,860,161,131.86/206,850.28
  6. Step 6: Final answer
    x = 110,515.50

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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.