Home / 278,481.26-417,378.76-109,831.97

Finding the Fourth Proportional to 278,481.26, 417,378.76 and 109,831.97

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Solution

The fourth proportional to 278,481.26, 417,378.76 and 109,831.97 is: 164,612.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,481.26 : 417,378.76 = 109,831.97 : x
  2. Step 2: Convert to fraction form
    278,481.26/417,378.76 = 109,831.97/x
  3. Step 3: Cross multiply
    278,481.26x = 417,378.76 × 109,831.97
  4. Step 4: Simplify right side
    278,481.26x = 45,841,532,215.82
  5. Step 5: Solve for x
    x = 45,841,532,215.82/278,481.26
  6. Step 6: Final answer
    x = 164,612.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.