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Finding the Fourth Proportional to 451,279.96, 622,744.98 and 270,091.72

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Solution

The fourth proportional to 451,279.96, 622,744.98 and 270,091.72 is: 372,713.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,279.96 : 622,744.98 = 270,091.72 : x
  2. Step 2: Convert to fraction form
    451,279.96/622,744.98 = 270,091.72/x
  3. Step 3: Cross multiply
    451,279.96x = 622,744.98 × 270,091.72
  4. Step 4: Simplify right side
    451,279.96x = 168,198,262,769.57
  5. Step 5: Solve for x
    x = 168,198,262,769.57/451,279.96
  6. Step 6: Final answer
    x = 372,713.79

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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.