Home / 275,134.24-379,707.78-161,979.40

Finding the Fourth Proportional to 275,134.24, 379,707.78 and 161,979.40

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Solution

The fourth proportional to 275,134.24, 379,707.78 and 161,979.40 is: 223,544.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,134.24 : 379,707.78 = 161,979.40 : x
  2. Step 2: Convert to fraction form
    275,134.24/379,707.78 = 161,979.40/x
  3. Step 3: Cross multiply
    275,134.24x = 379,707.78 × 161,979.40
  4. Step 4: Simplify right side
    275,134.24x = 61,504,838,379.73
  5. Step 5: Solve for x
    x = 61,504,838,379.73/275,134.24
  6. Step 6: Final answer
    x = 223,544.84

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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.