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Finding the Fourth Proportional to 439,379.76, 658,832.51 and 199,362.69

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Solution

The fourth proportional to 439,379.76, 658,832.51 and 199,362.69 is: 298,936.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,379.76 : 658,832.51 = 199,362.69 : x
  2. Step 2: Convert to fraction form
    439,379.76/658,832.51 = 199,362.69/x
  3. Step 3: Cross multiply
    439,379.76x = 658,832.51 × 199,362.69
  4. Step 4: Simplify right side
    439,379.76x = 131,346,621,453.05
  5. Step 5: Solve for x
    x = 131,346,621,453.05/439,379.76
  6. Step 6: Final answer
    x = 298,936.44

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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.