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Finding the Fourth Proportional to 551,998.20, 827,997.30 and 172,950.60

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Solution

The fourth proportional to 551,998.20, 827,997.30 and 172,950.60 is: 259,425.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,998.20 : 827,997.30 = 172,950.60 : x
  2. Step 2: Convert to fraction form
    551,998.20/827,997.30 = 172,950.60/x
  3. Step 3: Cross multiply
    551,998.20x = 827,997.30 × 172,950.60
  4. Step 4: Simplify right side
    551,998.20x = 143,202,629,833.38
  5. Step 5: Solve for x
    x = 143,202,629,833.38/551,998.20
  6. Step 6: Final answer
    x = 259,425.90

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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.