Home / 259,339.08-389,074.22-72,350.44

Finding the Fourth Proportional to 259,339.08, 389,074.22 and 72,350.44

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Solution

The fourth proportional to 259,339.08, 389,074.22 and 72,350.44 is: 108,543.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,339.08 : 389,074.22 = 72,350.44 : x
  2. Step 2: Convert to fraction form
    259,339.08/389,074.22 = 72,350.44/x
  3. Step 3: Cross multiply
    259,339.08x = 389,074.22 × 72,350.44
  4. Step 4: Simplify right side
    259,339.08x = 28,149,691,009.66
  5. Step 5: Solve for x
    x = 28,149,691,009.66/259,339.08
  6. Step 6: Final answer
    x = 108,543.96

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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.