Home / 203,560.80-305,341.20-200,608.35

Finding the Fourth Proportional to 203,560.80, 305,341.20 and 200,608.35

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Solution

The fourth proportional to 203,560.80, 305,341.20 and 200,608.35 is: 300,912.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,560.80 : 305,341.20 = 200,608.35 : x
  2. Step 2: Convert to fraction form
    203,560.80/305,341.20 = 200,608.35/x
  3. Step 3: Cross multiply
    203,560.80x = 305,341.20 × 200,608.35
  4. Step 4: Simplify right side
    203,560.80x = 61,253,994,319.02
  5. Step 5: Solve for x
    x = 61,253,994,319.02/203,560.80
  6. Step 6: Final answer
    x = 300,912.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.