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Finding the Fourth Proportional to 644,354.22, 966,650.22 and 212,096.10

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Solution

The fourth proportional to 644,354.22, 966,650.22 and 212,096.10 is: 318,183.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,354.22 : 966,650.22 = 212,096.10 : x
  2. Step 2: Convert to fraction form
    644,354.22/966,650.22 = 212,096.10/x
  3. Step 3: Cross multiply
    644,354.22x = 966,650.22 × 212,096.10
  4. Step 4: Simplify right side
    644,354.22x = 205,022,741,726.14
  5. Step 5: Solve for x
    x = 205,022,741,726.14/644,354.22
  6. Step 6: Final answer
    x = 318,183.28

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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.