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Finding the Fourth Proportional to 377,769.62, 521,163.01 and 250,223.78

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Solution

The fourth proportional to 377,769.62, 521,163.01 and 250,223.78 is: 345,203.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,769.62 : 521,163.01 = 250,223.78 : x
  2. Step 2: Convert to fraction form
    377,769.62/521,163.01 = 250,223.78/x
  3. Step 3: Cross multiply
    377,769.62x = 521,163.01 × 250,223.78
  4. Step 4: Simplify right side
    377,769.62x = 130,407,379,974.07
  5. Step 5: Solve for x
    x = 130,407,379,974.07/377,769.62
  6. Step 6: Final answer
    x = 345,203.46

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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.