Home / 280,226.73-386,721.44-159,385.43

Finding the Fourth Proportional to 280,226.73, 386,721.44 and 159,385.43

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Solution

The fourth proportional to 280,226.73, 386,721.44 and 159,385.43 is: 219,956.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,226.73 : 386,721.44 = 159,385.43 : x
  2. Step 2: Convert to fraction form
    280,226.73/386,721.44 = 159,385.43/x
  3. Step 3: Cross multiply
    280,226.73x = 386,721.44 × 159,385.43
  4. Step 4: Simplify right side
    280,226.73x = 61,637,763,772.19
  5. Step 5: Solve for x
    x = 61,637,763,772.19/280,226.73
  6. Step 6: Final answer
    x = 219,956.76

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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.