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Finding the Fourth Proportional to 263,371.52, 395,098.29 and 85,837.34

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Solution

The fourth proportional to 263,371.52, 395,098.29 and 85,837.34 is: 128,769.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,371.52 : 395,098.29 = 85,837.34 : x
  2. Step 2: Convert to fraction form
    263,371.52/395,098.29 = 85,837.34/x
  3. Step 3: Cross multiply
    263,371.52x = 395,098.29 × 85,837.34
  4. Step 4: Simplify right side
    263,371.52x = 33,914,187,239.89
  5. Step 5: Solve for x
    x = 33,914,187,239.89/263,371.52
  6. Step 6: Final answer
    x = 128,769.38

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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.