Home / 263,823.12-395,745.75-76,834.62

Finding the Fourth Proportional to 263,823.12, 395,745.75 and 76,834.62

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Solution

The fourth proportional to 263,823.12, 395,745.75 and 76,834.62 is: 115,255.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,823.12 : 395,745.75 = 76,834.62 : x
  2. Step 2: Convert to fraction form
    263,823.12/395,745.75 = 76,834.62/x
  3. Step 3: Cross multiply
    263,823.12x = 395,745.75 × 76,834.62
  4. Step 4: Simplify right side
    263,823.12x = 30,406,974,317.87
  5. Step 5: Solve for x
    x = 30,406,974,317.87/263,823.12
  6. Step 6: Final answer
    x = 115,255.15

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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.