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Finding the Fourth Proportional to 308,727.88, 426,110.64 and 201,105.88

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Solution

The fourth proportional to 308,727.88, 426,110.64 and 201,105.88 is: 277,569.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,727.88 : 426,110.64 = 201,105.88 : x
  2. Step 2: Convert to fraction form
    308,727.88/426,110.64 = 201,105.88/x
  3. Step 3: Cross multiply
    308,727.88x = 426,110.64 × 201,105.88
  4. Step 4: Simplify right side
    308,727.88x = 85,693,355,234.56
  5. Step 5: Solve for x
    x = 85,693,355,234.56/308,727.88
  6. Step 6: Final answer
    x = 277,569.21

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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.