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Finding the Fourth Proportional to 308,727.18, 425,635.11 and 222,614.10

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Solution

The fourth proportional to 308,727.18, 425,635.11 and 222,614.10 is: 306,912.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,727.18 : 425,635.11 = 222,614.10 : x
  2. Step 2: Convert to fraction form
    308,727.18/425,635.11 = 222,614.10/x
  3. Step 3: Cross multiply
    308,727.18x = 425,635.11 × 222,614.10
  4. Step 4: Simplify right side
    308,727.18x = 94,752,376,941.05
  5. Step 5: Solve for x
    x = 94,752,376,941.05/308,727.18
  6. Step 6: Final answer
    x = 306,912.97

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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.