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Finding the Fourth Proportional to 276,658.98, 381,965.96 and 225,793.22

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Solution

The fourth proportional to 276,658.98, 381,965.96 and 225,793.22 is: 311,738.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,658.98 : 381,965.96 = 225,793.22 : x
  2. Step 2: Convert to fraction form
    276,658.98/381,965.96 = 225,793.22/x
  3. Step 3: Cross multiply
    276,658.98x = 381,965.96 × 225,793.22
  4. Step 4: Simplify right side
    276,658.98x = 86,245,324,038.79
  5. Step 5: Solve for x
    x = 86,245,324,038.79/276,658.98
  6. Step 6: Final answer
    x = 311,738.75

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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.