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Finding the Fourth Proportional to 276,654.98, 381,960.43 and 225,789.22

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Solution

The fourth proportional to 276,654.98, 381,960.43 and 225,789.22 is: 311,733.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,654.98 : 381,960.43 = 225,789.22 : x
  2. Step 2: Convert to fraction form
    276,654.98/381,960.43 = 225,789.22/x
  3. Step 3: Cross multiply
    276,654.98x = 381,960.43 × 225,789.22
  4. Step 4: Simplify right side
    276,654.98x = 86,242,547,560.56
  5. Step 5: Solve for x
    x = 86,242,547,560.56/276,654.98
  6. Step 6: Final answer
    x = 311,733.22

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1.5x scale

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.