Home / 206,580.20-309,870.30-173,119.10

Finding the Fourth Proportional to 206,580.20, 309,870.30 and 173,119.10

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Solution

The fourth proportional to 206,580.20, 309,870.30 and 173,119.10 is: 259,678.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,580.20 : 309,870.30 = 173,119.10 : x
  2. Step 2: Convert to fraction form
    206,580.20/309,870.30 = 173,119.10/x
  3. Step 3: Cross multiply
    206,580.20x = 309,870.30 × 173,119.10
  4. Step 4: Simplify right side
    206,580.20x = 53,644,467,452.73
  5. Step 5: Solve for x
    x = 53,644,467,452.73/206,580.20
  6. Step 6: Final answer
    x = 259,678.65

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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.