Home / 412,162.20-618,272.10-162,811.80

Finding the Fourth Proportional to 412,162.20, 618,272.10 and 162,811.80

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Solution

The fourth proportional to 412,162.20, 618,272.10 and 162,811.80 is: 244,229.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,162.20 : 618,272.10 = 162,811.80 : x
  2. Step 2: Convert to fraction form
    412,162.20/618,272.10 = 162,811.80/x
  3. Step 3: Cross multiply
    412,162.20x = 618,272.10 × 162,811.80
  4. Step 4: Simplify right side
    412,162.20x = 100,661,993,490.78
  5. Step 5: Solve for x
    x = 100,661,993,490.78/412,162.20
  6. Step 6: Final answer
    x = 244,229.08

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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.