Home / 276,511.52-381,382.16-208,531.36

Finding the Fourth Proportional to 276,511.52, 381,382.16 and 208,531.36

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Solution

The fourth proportional to 276,511.52, 381,382.16 and 208,531.36 is: 287,619.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,511.52 : 381,382.16 = 208,531.36 : x
  2. Step 2: Convert to fraction form
    276,511.52/381,382.16 = 208,531.36/x
  3. Step 3: Cross multiply
    276,511.52x = 381,382.16 × 208,531.36
  4. Step 4: Simplify right side
    276,511.52x = 79,530,140,072.41
  5. Step 5: Solve for x
    x = 79,530,140,072.41/276,511.52
  6. Step 6: Final answer
    x = 287,619.62

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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.