Home / 278,170.29-417,255.73-100,635.70

Finding the Fourth Proportional to 278,170.29, 417,255.73 and 100,635.70

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Solution

The fourth proportional to 278,170.29, 417,255.73 and 100,635.70 is: 150,953.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,170.29 : 417,255.73 = 100,635.70 : x
  2. Step 2: Convert to fraction form
    278,170.29/417,255.73 = 100,635.70/x
  3. Step 3: Cross multiply
    278,170.29x = 417,255.73 × 100,635.70
  4. Step 4: Simplify right side
    278,170.29x = 41,990,822,467.56
  5. Step 5: Solve for x
    x = 41,990,822,467.56/278,170.29
  6. Step 6: Final answer
    x = 150,953.66

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1.5x scale

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.