Home / 407,198.85-561,937.80-225,922.68

Finding the Fourth Proportional to 407,198.85, 561,937.80 and 225,922.68

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Solution

The fourth proportional to 407,198.85, 561,937.80 and 225,922.68 is: 311,775.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,198.85 : 561,937.80 = 225,922.68 : x
  2. Step 2: Convert to fraction form
    407,198.85/561,937.80 = 225,922.68/x
  3. Step 3: Cross multiply
    407,198.85x = 561,937.80 × 225,922.68
  4. Step 4: Simplify right side
    407,198.85x = 126,954,493,769.30
  5. Step 5: Solve for x
    x = 126,954,493,769.30/407,198.85
  6. Step 6: Final answer
    x = 311,775.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.