Home / 206,566.20-309,849.30-143,252.55

Finding the Fourth Proportional to 206,566.20, 309,849.30 and 143,252.55

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Solution

The fourth proportional to 206,566.20, 309,849.30 and 143,252.55 is: 214,878.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,566.20 : 309,849.30 = 143,252.55 : x
  2. Step 2: Convert to fraction form
    206,566.20/309,849.30 = 143,252.55/x
  3. Step 3: Cross multiply
    206,566.20x = 309,849.30 × 143,252.55
  4. Step 4: Simplify right side
    206,566.20x = 44,386,702,340.72
  5. Step 5: Solve for x
    x = 44,386,702,340.72/206,566.20
  6. Step 6: Final answer
    x = 214,878.83

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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.