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Finding the Fourth Proportional to 303,982.89, 419,532 and 252,905.52

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Solution

The fourth proportional to 303,982.89, 419,532 and 252,905.52 is: 349,039.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,982.89 : 419,532 = 252,905.52 : x
  2. Step 2: Convert to fraction form
    303,982.89/419,532 = 252,905.52/x
  3. Step 3: Cross multiply
    303,982.89x = 419,532 × 252,905.52
  4. Step 4: Simplify right side
    303,982.89x = 106,101,958,616.64
  5. Step 5: Solve for x
    x = 106,101,958,616.64/303,982.89
  6. Step 6: Final answer
    x = 349,039.25

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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.