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Finding the Fourth Proportional to 276,481.76, 414,708.06 and 136,193

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Solution

The fourth proportional to 276,481.76, 414,708.06 and 136,193 is: 204,282.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,481.76 : 414,708.06 = 136,193 : x
  2. Step 2: Convert to fraction form
    276,481.76/414,708.06 = 136,193/x
  3. Step 3: Cross multiply
    276,481.76x = 414,708.06 × 136,193
  4. Step 4: Simplify right side
    276,481.76x = 56,480,334,815.58
  5. Step 5: Solve for x
    x = 56,480,334,815.58/276,481.76
  6. Step 6: Final answer
    x = 204,282.32

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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.