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Finding the Fourth Proportional to 276,910.88, 382,137.01 and 149,586.48

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Solution

The fourth proportional to 276,910.88, 382,137.01 and 149,586.48 is: 206,429.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,910.88 : 382,137.01 = 149,586.48 : x
  2. Step 2: Convert to fraction form
    276,910.88/382,137.01 = 149,586.48/x
  3. Step 3: Cross multiply
    276,910.88x = 382,137.01 × 149,586.48
  4. Step 4: Simplify right side
    276,910.88x = 57,162,529,829.66
  5. Step 5: Solve for x
    x = 57,162,529,829.66/276,910.88
  6. Step 6: Final answer
    x = 206,429.34

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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.