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Finding the Fourth Proportional to 276,478.56, 381,762 and 179,730.36

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Solution

The fourth proportional to 276,478.56, 381,762 and 179,730.36 is: 248,171.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,478.56 : 381,762 = 179,730.36 : x
  2. Step 2: Convert to fraction form
    276,478.56/381,762 = 179,730.36/x
  3. Step 3: Cross multiply
    276,478.56x = 381,762 × 179,730.36
  4. Step 4: Simplify right side
    276,478.56x = 68,614,221,694.32
  5. Step 5: Solve for x
    x = 68,614,221,694.32/276,478.56
  6. Step 6: Final answer
    x = 248,171.94

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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.