Home / 313,540.20-469,964.70-173,399.40

Finding the Fourth Proportional to 313,540.20, 469,964.70 and 173,399.40

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Solution

The fourth proportional to 313,540.20, 469,964.70 and 173,399.40 is: 259,907.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,540.20 : 469,964.70 = 173,399.40 : x
  2. Step 2: Convert to fraction form
    313,540.20/469,964.70 = 173,399.40/x
  3. Step 3: Cross multiply
    313,540.20x = 469,964.70 × 173,399.40
  4. Step 4: Simplify right side
    313,540.20x = 81,491,597,001.18
  5. Step 5: Solve for x
    x = 81,491,597,001.18/313,540.20
  6. Step 6: Final answer
    x = 259,907.97

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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.