Home / 220,975.20-331,462.80-198,856.80

Finding the Fourth Proportional to 220,975.20, 331,462.80 and 198,856.80

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Solution

The fourth proportional to 220,975.20, 331,462.80 and 198,856.80 is: 298,285.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,975.20 : 331,462.80 = 198,856.80 : x
  2. Step 2: Convert to fraction form
    220,975.20/331,462.80 = 198,856.80/x
  3. Step 3: Cross multiply
    220,975.20x = 331,462.80 × 198,856.80
  4. Step 4: Simplify right side
    220,975.20x = 65,913,631,727.04
  5. Step 5: Solve for x
    x = 65,913,631,727.04/220,975.20
  6. Step 6: Final answer
    x = 298,285.20

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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.