Home / 280,057.20-386,463.54-159,181.68

Finding the Fourth Proportional to 280,057.20, 386,463.54 and 159,181.68

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Solution

The fourth proportional to 280,057.20, 386,463.54 and 159,181.68 is: 219,661.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,057.20 : 386,463.54 = 159,181.68 : x
  2. Step 2: Convert to fraction form
    280,057.20/386,463.54 = 159,181.68/x
  3. Step 3: Cross multiply
    280,057.20x = 386,463.54 × 159,181.68
  4. Step 4: Simplify right side
    280,057.20x = 61,517,915,555.95
  5. Step 5: Solve for x
    x = 61,517,915,555.95/280,057.20
  6. Step 6: Final answer
    x = 219,661.97

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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.