Home / 263,815.78-395,720.82-64,136.40

Finding the Fourth Proportional to 263,815.78, 395,720.82 and 64,136.40

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Solution

The fourth proportional to 263,815.78, 395,720.82 and 64,136.40 is: 96,203.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,815.78 : 395,720.82 = 64,136.40 : x
  2. Step 2: Convert to fraction form
    263,815.78/395,720.82 = 64,136.40/x
  3. Step 3: Cross multiply
    263,815.78x = 395,720.82 × 64,136.40
  4. Step 4: Simplify right side
    263,815.78x = 25,380,108,799.85
  5. Step 5: Solve for x
    x = 25,380,108,799.85/263,815.78
  6. Step 6: Final answer
    x = 96,203.91

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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.