Home / 278,251.68-383,979.60-165,072

Finding the Fourth Proportional to 278,251.68, 383,979.60 and 165,072

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Solution

The fourth proportional to 278,251.68, 383,979.60 and 165,072 is: 227,794.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,251.68 : 383,979.60 = 165,072 : x
  2. Step 2: Convert to fraction form
    278,251.68/383,979.60 = 165,072/x
  3. Step 3: Cross multiply
    278,251.68x = 383,979.60 × 165,072
  4. Step 4: Simplify right side
    278,251.68x = 63,384,280,531.20
  5. Step 5: Solve for x
    x = 63,384,280,531.20/278,251.68
  6. Step 6: Final answer
    x = 227,794.78

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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.