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Finding the Fourth Proportional to 222,476.50, 307,039.60 and 126,997.56

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Solution

The fourth proportional to 222,476.50, 307,039.60 and 126,997.56 is: 175,269.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,476.50 : 307,039.60 = 126,997.56 : x
  2. Step 2: Convert to fraction form
    222,476.50/307,039.60 = 126,997.56/x
  3. Step 3: Cross multiply
    222,476.50x = 307,039.60 × 126,997.56
  4. Step 4: Simplify right side
    222,476.50x = 38,993,280,023.38
  5. Step 5: Solve for x
    x = 38,993,280,023.38/222,476.50
  6. Step 6: Final answer
    x = 175,269.21

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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.