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Finding the Fourth Proportional to 626,872.69, 940,374.65 and 206,181.37

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Solution

The fourth proportional to 626,872.69, 940,374.65 and 206,181.37 is: 309,293.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,872.69 : 940,374.65 = 206,181.37 : x
  2. Step 2: Convert to fraction form
    626,872.69/940,374.65 = 206,181.37/x
  3. Step 3: Cross multiply
    626,872.69x = 940,374.65 × 206,181.37
  4. Step 4: Simplify right side
    626,872.69x = 193,887,732,619.36
  5. Step 5: Solve for x
    x = 193,887,732,619.36/626,872.69
  6. Step 6: Final answer
    x = 309,293.63

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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.