Home / 204,660.72-280,386.23-196,990.44

Finding the Fourth Proportional to 204,660.72, 280,386.23 and 196,990.44

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Solution

The fourth proportional to 204,660.72, 280,386.23 and 196,990.44 is: 269,877.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,660.72 : 280,386.23 = 196,990.44 : x
  2. Step 2: Convert to fraction form
    204,660.72/280,386.23 = 196,990.44/x
  3. Step 3: Cross multiply
    204,660.72x = 280,386.23 × 196,990.44
  4. Step 4: Simplify right side
    204,660.72x = 55,233,405,832.69
  5. Step 5: Solve for x
    x = 55,233,405,832.69/204,660.72
  6. Step 6: Final answer
    x = 269,877.90

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.