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Finding the Fourth Proportional to 303,995.81, 419,549.75 and 252,918.43

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Solution

The fourth proportional to 303,995.81, 419,549.75 and 252,918.43 is: 349,057.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,995.81 : 419,549.75 = 252,918.43 : x
  2. Step 2: Convert to fraction form
    303,995.81/419,549.75 = 252,918.43/x
  3. Step 3: Cross multiply
    303,995.81x = 419,549.75 × 252,918.43
  4. Step 4: Simplify right side
    303,995.81x = 106,111,864,076.89
  5. Step 5: Solve for x
    x = 106,111,864,076.89/303,995.81
  6. Step 6: Final answer
    x = 349,057.00

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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.