Home / 260,738.08-391,293.64-111,083.20

Finding the Fourth Proportional to 260,738.08, 391,293.64 and 111,083.20

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Solution

The fourth proportional to 260,738.08, 391,293.64 and 111,083.20 is: 166,704.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,738.08 : 391,293.64 = 111,083.20 : x
  2. Step 2: Convert to fraction form
    260,738.08/391,293.64 = 111,083.20/x
  3. Step 3: Cross multiply
    260,738.08x = 391,293.64 × 111,083.20
  4. Step 4: Simplify right side
    260,738.08x = 43,466,149,670.85
  5. Step 5: Solve for x
    x = 43,466,149,670.85/260,738.08
  6. Step 6: Final answer
    x = 166,704.26

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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.