Home / 263,383.26-395,137.71-85,890.48

Finding the Fourth Proportional to 263,383.26, 395,137.71 and 85,890.48

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Solution

The fourth proportional to 263,383.26, 395,137.71 and 85,890.48 is: 128,856.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,383.26 : 395,137.71 = 85,890.48 : x
  2. Step 2: Convert to fraction form
    263,383.26/395,137.71 = 85,890.48/x
  3. Step 3: Cross multiply
    263,383.26x = 395,137.71 × 85,890.48
  4. Step 4: Simplify right side
    263,383.26x = 33,938,567,578.00
  5. Step 5: Solve for x
    x = 33,938,567,578.00/263,383.26
  6. Step 6: Final answer
    x = 128,856.21

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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.