Home / 278,221.52-383,886.60-165,081.04

Finding the Fourth Proportional to 278,221.52, 383,886.60 and 165,081.04

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Solution

The fourth proportional to 278,221.52, 383,886.60 and 165,081.04 is: 227,776.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,221.52 : 383,886.60 = 165,081.04 : x
  2. Step 2: Convert to fraction form
    278,221.52/383,886.60 = 165,081.04/x
  3. Step 3: Cross multiply
    278,221.52x = 383,886.60 × 165,081.04
  4. Step 4: Simplify right side
    278,221.52x = 63,372,399,170.06
  5. Step 5: Solve for x
    x = 63,372,399,170.06/278,221.52
  6. Step 6: Final answer
    x = 227,776.77

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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.