Home / 269,747.20-405,081.60-145,331.20

Finding the Fourth Proportional to 269,747.20, 405,081.60 and 145,331.20

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Solution

The fourth proportional to 269,747.20, 405,081.60 and 145,331.20 is: 218,245.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,747.20 : 405,081.60 = 145,331.20 : x
  2. Step 2: Convert to fraction form
    269,747.20/405,081.60 = 145,331.20/x
  3. Step 3: Cross multiply
    269,747.20x = 405,081.60 × 145,331.20
  4. Step 4: Simplify right side
    269,747.20x = 58,870,995,025.92
  5. Step 5: Solve for x
    x = 58,870,995,025.92/269,747.20
  6. Step 6: Final answer
    x = 218,245.06

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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.