Home / 260,820.86-391,039.92-83,225.52

Finding the Fourth Proportional to 260,820.86, 391,039.92 and 83,225.52

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Solution

The fourth proportional to 260,820.86, 391,039.92 and 83,225.52 is: 124,777.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,820.86 : 391,039.92 = 83,225.52 : x
  2. Step 2: Convert to fraction form
    260,820.86/391,039.92 = 83,225.52/x
  3. Step 3: Cross multiply
    260,820.86x = 391,039.92 × 83,225.52
  4. Step 4: Simplify right side
    260,820.86x = 32,544,500,682.76
  5. Step 5: Solve for x
    x = 32,544,500,682.76/260,820.86
  6. Step 6: Final answer
    x = 124,777.22

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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.