Home / 280,363.20-386,887.70-159,493.11

Finding the Fourth Proportional to 280,363.20, 386,887.70 and 159,493.11

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Solution

The fourth proportional to 280,363.20, 386,887.70 and 159,493.11 is: 220,092.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,363.20 : 386,887.70 = 159,493.11 : x
  2. Step 2: Convert to fraction form
    280,363.20/386,887.70 = 159,493.11/x
  3. Step 3: Cross multiply
    280,363.20x = 386,887.70 × 159,493.11
  4. Step 4: Simplify right side
    280,363.20x = 61,705,921,696.28
  5. Step 5: Solve for x
    x = 61,705,921,696.28/280,363.20
  6. Step 6: Final answer
    x = 220,092.80

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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.