Home / 260,849.70-391,404.15-103,083.30

Finding the Fourth Proportional to 260,849.70, 391,404.15 and 103,083.30

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Solution

The fourth proportional to 260,849.70, 391,404.15 and 103,083.30 is: 154,676.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,849.70 : 391,404.15 = 103,083.30 : x
  2. Step 2: Convert to fraction form
    260,849.70/391,404.15 = 103,083.30/x
  3. Step 3: Cross multiply
    260,849.70x = 391,404.15 × 103,083.30
  4. Step 4: Simplify right side
    260,849.70x = 40,347,231,415.70
  5. Step 5: Solve for x
    x = 40,347,231,415.70/260,849.70
  6. Step 6: Final answer
    x = 154,676.17

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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.