Home / 278,650.02-417,974.95-68,286.13

Finding the Fourth Proportional to 278,650.02, 417,974.95 and 68,286.13

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Solution

The fourth proportional to 278,650.02, 417,974.95 and 68,286.13 is: 102,429.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,650.02 : 417,974.95 = 68,286.13 : x
  2. Step 2: Convert to fraction form
    278,650.02/417,974.95 = 68,286.13/x
  3. Step 3: Cross multiply
    278,650.02x = 417,974.95 × 68,286.13
  4. Step 4: Simplify right side
    278,650.02x = 28,541,891,772.44
  5. Step 5: Solve for x
    x = 28,541,891,772.44/278,650.02
  6. Step 6: Final answer
    x = 102,429.18

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Similar ratio
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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.