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Finding the Fourth Proportional to 280,297.44, 386,819.49 and 159,435.62

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Solution

The fourth proportional to 280,297.44, 386,819.49 and 159,435.62 is: 220,026.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,297.44 : 386,819.49 = 159,435.62 : x
  2. Step 2: Convert to fraction form
    280,297.44/386,819.49 = 159,435.62/x
  3. Step 3: Cross multiply
    280,297.44x = 386,819.49 × 159,435.62
  4. Step 4: Simplify right side
    280,297.44x = 61,672,806,781.17
  5. Step 5: Solve for x
    x = 61,672,806,781.17/280,297.44
  6. Step 6: Final answer
    x = 220,026.29

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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.