Home / 260,917.08-391,379.22-73,928.40

Finding the Fourth Proportional to 260,917.08, 391,379.22 and 73,928.40

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Solution

The fourth proportional to 260,917.08, 391,379.22 and 73,928.40 is: 110,893.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,917.08 : 391,379.22 = 73,928.40 : x
  2. Step 2: Convert to fraction form
    260,917.08/391,379.22 = 73,928.40/x
  3. Step 3: Cross multiply
    260,917.08x = 391,379.22 × 73,928.40
  4. Step 4: Simplify right side
    260,917.08x = 28,934,039,527.85
  5. Step 5: Solve for x
    x = 28,934,039,527.85/260,917.08
  6. Step 6: Final answer
    x = 110,893.62

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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.