Home / 276,885.78-382,102.39-149,561.38

Finding the Fourth Proportional to 276,885.78, 382,102.39 and 149,561.38

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Solution

The fourth proportional to 276,885.78, 382,102.39 and 149,561.38 is: 206,394.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,885.78 : 382,102.39 = 149,561.38 : x
  2. Step 2: Convert to fraction form
    276,885.78/382,102.39 = 149,561.38/x
  3. Step 3: Cross multiply
    276,885.78x = 382,102.39 × 149,561.38
  4. Step 4: Simplify right side
    276,885.78x = 57,147,760,749.70
  5. Step 5: Solve for x
    x = 57,147,760,749.70/276,885.78
  6. Step 6: Final answer
    x = 206,394.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.