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Finding the Fourth Proportional to 439,307.92, 659,183.69 and 199,268.85

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Solution

The fourth proportional to 439,307.92, 659,183.69 and 199,268.85 is: 299,003.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,307.92 : 659,183.69 = 199,268.85 : x
  2. Step 2: Convert to fraction form
    439,307.92/659,183.69 = 199,268.85/x
  3. Step 3: Cross multiply
    439,307.92x = 659,183.69 × 199,268.85
  4. Step 4: Simplify right side
    439,307.92x = 131,354,775,845.06
  5. Step 5: Solve for x
    x = 131,354,775,845.06/439,307.92
  6. Step 6: Final answer
    x = 299,003.89

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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.