Home / 260,767.41-391,087.89-71,228.66

Finding the Fourth Proportional to 260,767.41, 391,087.89 and 71,228.66

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Solution

The fourth proportional to 260,767.41, 391,087.89 and 71,228.66 is: 106,825.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,767.41 : 391,087.89 = 71,228.66 : x
  2. Step 2: Convert to fraction form
    260,767.41/391,087.89 = 71,228.66/x
  3. Step 3: Cross multiply
    260,767.41x = 391,087.89 × 71,228.66
  4. Step 4: Simplify right side
    260,767.41x = 27,856,666,346.93
  5. Step 5: Solve for x
    x = 27,856,666,346.93/260,767.41
  6. Step 6: Final answer
    x = 106,825.72

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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.