Home / 278,733.28-384,705.84-181,768.78

Finding the Fourth Proportional to 278,733.28, 384,705.84 and 181,768.78

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Solution

The fourth proportional to 278,733.28, 384,705.84 and 181,768.78 is: 250,876.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,733.28 : 384,705.84 = 181,768.78 : x
  2. Step 2: Convert to fraction form
    278,733.28/384,705.84 = 181,768.78/x
  3. Step 3: Cross multiply
    278,733.28x = 384,705.84 × 181,768.78
  4. Step 4: Simplify right side
    278,733.28x = 69,927,511,195.68
  5. Step 5: Solve for x
    x = 69,927,511,195.68/278,733.28
  6. Step 6: Final answer
    x = 250,876.07

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1.5x scale

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.