Home / 312,214.12-468,321.20-75,556.82

Finding the Fourth Proportional to 312,214.12, 468,321.20 and 75,556.82

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Solution

The fourth proportional to 312,214.12, 468,321.20 and 75,556.82 is: 113,335.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,214.12 : 468,321.20 = 75,556.82 : x
  2. Step 2: Convert to fraction form
    312,214.12/468,321.20 = 75,556.82/x
  3. Step 3: Cross multiply
    312,214.12x = 468,321.20 × 75,556.82
  4. Step 4: Simplify right side
    312,214.12x = 35,384,860,610.58
  5. Step 5: Solve for x
    x = 35,384,860,610.58/312,214.12
  6. Step 6: Final answer
    x = 113,335.23

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1.5x scale

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.