Home / 206,578.20-309,867.30-173,117.10

Finding the Fourth Proportional to 206,578.20, 309,867.30 and 173,117.10

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Solution

The fourth proportional to 206,578.20, 309,867.30 and 173,117.10 is: 259,675.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,578.20 : 309,867.30 = 173,117.10 : x
  2. Step 2: Convert to fraction form
    206,578.20/309,867.30 = 173,117.10/x
  3. Step 3: Cross multiply
    206,578.20x = 309,867.30 × 173,117.10
  4. Step 4: Simplify right side
    206,578.20x = 53,643,328,360.83
  5. Step 5: Solve for x
    x = 53,643,328,360.83/206,578.20
  6. Step 6: Final answer
    x = 259,675.65

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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.