Home / 278,456.64-383,979.60-165,257.52

Finding the Fourth Proportional to 278,456.64, 383,979.60 and 165,257.52

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Solution

The fourth proportional to 278,456.64, 383,979.60 and 165,257.52 is: 227,882.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,456.64 : 383,979.60 = 165,257.52 : x
  2. Step 2: Convert to fraction form
    278,456.64/383,979.60 = 165,257.52/x
  3. Step 3: Cross multiply
    278,456.64x = 383,979.60 × 165,257.52
  4. Step 4: Simplify right side
    278,456.64x = 63,455,516,426.59
  5. Step 5: Solve for x
    x = 63,455,516,426.59/278,456.64
  6. Step 6: Final answer
    x = 227,882.94

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1.5x scale

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.