Home / 260,836.08-391,276.80-73,849.20

Finding the Fourth Proportional to 260,836.08, 391,276.80 and 73,849.20

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Solution

The fourth proportional to 260,836.08, 391,276.80 and 73,849.20 is: 110,780.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,836.08 : 391,276.80 = 73,849.20 : x
  2. Step 2: Convert to fraction form
    260,836.08/391,276.80 = 73,849.20/x
  3. Step 3: Cross multiply
    260,836.08x = 391,276.80 × 73,849.20
  4. Step 4: Simplify right side
    260,836.08x = 28,895,478,658.56
  5. Step 5: Solve for x
    x = 28,895,478,658.56/260,836.08
  6. Step 6: Final answer
    x = 110,780.22

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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.