Home / 276,885.72-382,102.30-149,561.31

Finding the Fourth Proportional to 276,885.72, 382,102.30 and 149,561.31

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Solution

The fourth proportional to 276,885.72, 382,102.30 and 149,561.31 is: 206,394.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,885.72 : 382,102.30 = 149,561.31 : x
  2. Step 2: Convert to fraction form
    276,885.72/382,102.30 = 149,561.31/x
  3. Step 3: Cross multiply
    276,885.72x = 382,102.30 × 149,561.31
  4. Step 4: Simplify right side
    276,885.72x = 57,147,722,161.85
  5. Step 5: Solve for x
    x = 57,147,722,161.85/276,885.72
  6. Step 6: Final answer
    x = 206,394.62

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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.