Home / 261,020.24-391,664.28-127,898

Finding the Fourth Proportional to 261,020.24, 391,664.28 and 127,898

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Solution

The fourth proportional to 261,020.24, 391,664.28 and 127,898 is: 191,912.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,020.24 : 391,664.28 = 127,898 : x
  2. Step 2: Convert to fraction form
    261,020.24/391,664.28 = 127,898/x
  3. Step 3: Cross multiply
    261,020.24x = 391,664.28 × 127,898
  4. Step 4: Simplify right side
    261,020.24x = 50,093,078,083.44
  5. Step 5: Solve for x
    x = 50,093,078,083.44/261,020.24
  6. Step 6: Final answer
    x = 191,912.62

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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.