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Finding the Fourth Proportional to 644,635.88, 966,846.57 and 195,249.90

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Solution

The fourth proportional to 644,635.88, 966,846.57 and 195,249.90 is: 292,842.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,635.88 : 966,846.57 = 195,249.90 : x
  2. Step 2: Convert to fraction form
    644,635.88/966,846.57 = 195,249.90/x
  3. Step 3: Cross multiply
    644,635.88x = 966,846.57 × 195,249.90
  4. Step 4: Simplify right side
    644,635.88x = 188,776,696,107.84
  5. Step 5: Solve for x
    x = 188,776,696,107.84/644,635.88
  6. Step 6: Final answer
    x = 292,842.37

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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.