Home / 331,829.20-497,743.80-82,511.20

Finding the Fourth Proportional to 331,829.20, 497,743.80 and 82,511.20

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Solution

The fourth proportional to 331,829.20, 497,743.80 and 82,511.20 is: 123,766.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,829.20 : 497,743.80 = 82,511.20 : x
  2. Step 2: Convert to fraction form
    331,829.20/497,743.80 = 82,511.20/x
  3. Step 3: Cross multiply
    331,829.20x = 497,743.80 × 82,511.20
  4. Step 4: Simplify right side
    331,829.20x = 41,069,438,230.56
  5. Step 5: Solve for x
    x = 41,069,438,230.56/331,829.20
  6. Step 6: Final answer
    x = 123,766.80

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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.