Home / 278,440.20-417,707.91-109,872.54

Finding the Fourth Proportional to 278,440.20, 417,707.91 and 109,872.54

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Solution

The fourth proportional to 278,440.20, 417,707.91 and 109,872.54 is: 164,827.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,440.20 : 417,707.91 = 109,872.54 : x
  2. Step 2: Convert to fraction form
    278,440.20/417,707.91 = 109,872.54/x
  3. Step 3: Cross multiply
    278,440.20x = 417,707.91 × 109,872.54
  4. Step 4: Simplify right side
    278,440.20x = 45,894,629,049.79
  5. Step 5: Solve for x
    x = 45,894,629,049.79/278,440.20
  6. Step 6: Final answer
    x = 164,827.60

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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.