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Finding the Fourth Proportional to 344,119.92, 515,979 and 133,511.82

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Solution

The fourth proportional to 344,119.92, 515,979 and 133,511.82 is: 200,189.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,119.92 : 515,979 = 133,511.82 : x
  2. Step 2: Convert to fraction form
    344,119.92/515,979 = 133,511.82/x
  3. Step 3: Cross multiply
    344,119.92x = 515,979 × 133,511.82
  4. Step 4: Simplify right side
    344,119.92x = 68,889,295,371.78
  5. Step 5: Solve for x
    x = 68,889,295,371.78/344,119.92
  6. Step 6: Final answer
    x = 200,189.79

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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.