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Finding the Fourth Proportional to 644,169.96, 965,954.94 and 239,080.05

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Solution

The fourth proportional to 644,169.96, 965,954.94 and 239,080.05 is: 358,508.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,169.96 : 965,954.94 = 239,080.05 : x
  2. Step 2: Convert to fraction form
    644,169.96/965,954.94 = 239,080.05/x
  3. Step 3: Cross multiply
    644,169.96x = 965,954.94 × 239,080.05
  4. Step 4: Simplify right side
    644,169.96x = 230,940,555,352.95
  5. Step 5: Solve for x
    x = 230,940,555,352.95/644,169.96
  6. Step 6: Final answer
    x = 358,508.73

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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.