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Finding the Fourth Proportional to 503,512.20, 755,268.30 and 204,002.55

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Solution

The fourth proportional to 503,512.20, 755,268.30 and 204,002.55 is: 306,003.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,512.20 : 755,268.30 = 204,002.55 : x
  2. Step 2: Convert to fraction form
    503,512.20/755,268.30 = 204,002.55/x
  3. Step 3: Cross multiply
    503,512.20x = 755,268.30 × 204,002.55
  4. Step 4: Simplify right side
    503,512.20x = 154,076,659,134.17
  5. Step 5: Solve for x
    x = 154,076,659,134.17/503,512.20
  6. Step 6: Final answer
    x = 306,003.83

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Similar ratio
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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.