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Finding the Fourth Proportional to 276,425.16, 414,591.49 and 76,765.73

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Solution

The fourth proportional to 276,425.16, 414,591.49 and 76,765.73 is: 115,135.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,425.16 : 414,591.49 = 76,765.73 : x
  2. Step 2: Convert to fraction form
    276,425.16/414,591.49 = 76,765.73/x
  3. Step 3: Cross multiply
    276,425.16x = 414,591.49 × 76,765.73
  4. Step 4: Simplify right side
    276,425.16x = 31,826,418,381.64
  5. Step 5: Solve for x
    x = 31,826,418,381.64/276,425.16
  6. Step 6: Final answer
    x = 115,135.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.