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Finding the Fourth Proportional to 276,278.76, 414,805.86 and 141,439.14

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Solution

The fourth proportional to 276,278.76, 414,805.86 and 141,439.14 is: 212,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,278.76 : 414,805.86 = 141,439.14 : x
  2. Step 2: Convert to fraction form
    276,278.76/414,805.86 = 141,439.14/x
  3. Step 3: Cross multiply
    276,278.76x = 414,805.86 × 141,439.14
  4. Step 4: Simplify right side
    276,278.76x = 58,669,784,105.36
  5. Step 5: Solve for x
    x = 58,669,784,105.36/276,278.76
  6. Step 6: Final answer
    x = 212,357.20

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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.