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Finding the Fourth Proportional to 503,276.09, 755,176.57 and 203,977.85

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Solution

The fourth proportional to 503,276.09, 755,176.57 and 203,977.85 is: 306,073.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,276.09 : 755,176.57 = 203,977.85 : x
  2. Step 2: Convert to fraction form
    503,276.09/755,176.57 = 203,977.85/x
  3. Step 3: Cross multiply
    503,276.09x = 755,176.57 × 203,977.85
  4. Step 4: Simplify right side
    503,276.09x = 154,039,288,833.15
  5. Step 5: Solve for x
    x = 154,039,288,833.15/503,276.09
  6. Step 6: Final answer
    x = 306,073.13

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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.