Home / 449,721.72-674,769.40-196,872.05

Finding the Fourth Proportional to 449,721.72, 674,769.40 and 196,872.05

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Solution

The fourth proportional to 449,721.72, 674,769.40 and 196,872.05 is: 295,389.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,721.72 : 674,769.40 = 196,872.05 : x
  2. Step 2: Convert to fraction form
    449,721.72/674,769.40 = 196,872.05/x
  3. Step 3: Cross multiply
    449,721.72x = 674,769.40 × 196,872.05
  4. Step 4: Simplify right side
    449,721.72x = 132,843,235,055.27
  5. Step 5: Solve for x
    x = 132,843,235,055.27/449,721.72
  6. Step 6: Final answer
    x = 295,389.86

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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.