Home / 278,944.44-384,999-177,091.20

Finding the Fourth Proportional to 278,944.44, 384,999 and 177,091.20

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Solution

The fourth proportional to 278,944.44, 384,999 and 177,091.20 is: 244,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,944.44 : 384,999 = 177,091.20 : x
  2. Step 2: Convert to fraction form
    278,944.44/384,999 = 177,091.20/x
  3. Step 3: Cross multiply
    278,944.44x = 384,999 × 177,091.20
  4. Step 4: Simplify right side
    278,944.44x = 68,179,934,908.80
  5. Step 5: Solve for x
    x = 68,179,934,908.80/278,944.44
  6. Step 6: Final answer
    x = 244,421.20

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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.