Home / 276,566.70-381,669.27-155,712.43

Finding the Fourth Proportional to 276,566.70, 381,669.27 and 155,712.43

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Solution

The fourth proportional to 276,566.70, 381,669.27 and 155,712.43 is: 214,887.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,566.70 : 381,669.27 = 155,712.43 : x
  2. Step 2: Convert to fraction form
    276,566.70/381,669.27 = 155,712.43/x
  3. Step 3: Cross multiply
    276,566.70x = 381,669.27 × 155,712.43
  4. Step 4: Simplify right side
    276,566.70x = 59,430,647,234.30
  5. Step 5: Solve for x
    x = 59,430,647,234.30/276,566.70
  6. Step 6: Final answer
    x = 214,887.21

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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.