Home / 269,139.92-403,788.82-79,605.28

Finding the Fourth Proportional to 269,139.92, 403,788.82 and 79,605.28

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Solution

The fourth proportional to 269,139.92, 403,788.82 and 79,605.28 is: 119,431.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,139.92 : 403,788.82 = 79,605.28 : x
  2. Step 2: Convert to fraction form
    269,139.92/403,788.82 = 79,605.28/x
  3. Step 3: Cross multiply
    269,139.92x = 403,788.82 × 79,605.28
  4. Step 4: Simplify right side
    269,139.92x = 32,143,722,755.84
  5. Step 5: Solve for x
    x = 32,143,722,755.84/269,139.92
  6. Step 6: Final answer
    x = 119,431.27

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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.