Home / 259,849.44-389,777.40-91,374.84

Finding the Fourth Proportional to 259,849.44, 389,777.40 and 91,374.84

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Solution

The fourth proportional to 259,849.44, 389,777.40 and 91,374.84 is: 137,063.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,849.44 : 389,777.40 = 91,374.84 : x
  2. Step 2: Convert to fraction form
    259,849.44/389,777.40 = 91,374.84/x
  3. Step 3: Cross multiply
    259,849.44x = 389,777.40 × 91,374.84
  4. Step 4: Simplify right side
    259,849.44x = 35,615,847,560.62
  5. Step 5: Solve for x
    x = 35,615,847,560.62/259,849.44
  6. Step 6: Final answer
    x = 137,063.40

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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.