Home / 414,515.20-621,772.80-148,259.56

Finding the Fourth Proportional to 414,515.20, 621,772.80 and 148,259.56

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Solution

The fourth proportional to 414,515.20, 621,772.80 and 148,259.56 is: 222,389.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,515.20 : 621,772.80 = 148,259.56 : x
  2. Step 2: Convert to fraction form
    414,515.20/621,772.80 = 148,259.56/x
  3. Step 3: Cross multiply
    414,515.20x = 621,772.80 × 148,259.56
  4. Step 4: Simplify right side
    414,515.20x = 92,183,761,747.97
  5. Step 5: Solve for x
    x = 92,183,761,747.97/414,515.20
  6. Step 6: Final answer
    x = 222,389.34

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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.