Home / 275,845.16-380,642.76-154,976.96

Finding the Fourth Proportional to 275,845.16, 380,642.76 and 154,976.96

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Solution

The fourth proportional to 275,845.16, 380,642.76 and 154,976.96 is: 213,854.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,845.16 : 380,642.76 = 154,976.96 : x
  2. Step 2: Convert to fraction form
    275,845.16/380,642.76 = 154,976.96/x
  3. Step 3: Cross multiply
    275,845.16x = 380,642.76 × 154,976.96
  4. Step 4: Simplify right side
    275,845.16x = 58,990,857,790.81
  5. Step 5: Solve for x
    x = 58,990,857,790.81/275,845.16
  6. Step 6: Final answer
    x = 213,854.97

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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.