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Finding the Fourth Proportional to 208,243.91, 312,363.09 and 50,473.73

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Solution

The fourth proportional to 208,243.91, 312,363.09 and 50,473.73 is: 75,709.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,243.91 : 312,363.09 = 50,473.73 : x
  2. Step 2: Convert to fraction form
    208,243.91/312,363.09 = 50,473.73/x
  3. Step 3: Cross multiply
    208,243.91x = 312,363.09 × 50,473.73
  4. Step 4: Simplify right side
    208,243.91x = 15,766,128,704.81
  5. Step 5: Solve for x
    x = 15,766,128,704.81/208,243.91
  6. Step 6: Final answer
    x = 75,709.92

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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.