Home / 414,540.40-621,964.20-165,401.20

Finding the Fourth Proportional to 414,540.40, 621,964.20 and 165,401.20

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Solution

The fourth proportional to 414,540.40, 621,964.20 and 165,401.20 is: 248,163.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,540.40 : 621,964.20 = 165,401.20 : x
  2. Step 2: Convert to fraction form
    414,540.40/621,964.20 = 165,401.20/x
  3. Step 3: Cross multiply
    414,540.40x = 621,964.20 × 165,401.20
  4. Step 4: Simplify right side
    414,540.40x = 102,873,625,037.04
  5. Step 5: Solve for x
    x = 102,873,625,037.04/414,540.40
  6. Step 6: Final answer
    x = 248,163.09

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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.