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Finding the Fourth Proportional to 303,994.81, 419,548.37 and 252,917.43

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Solution

The fourth proportional to 303,994.81, 419,548.37 and 252,917.43 is: 349,055.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,994.81 : 419,548.37 = 252,917.43 : x
  2. Step 2: Convert to fraction form
    303,994.81/419,548.37 = 252,917.43/x
  3. Step 3: Cross multiply
    303,994.81x = 419,548.37 × 252,917.43
  4. Step 4: Simplify right side
    303,994.81x = 106,111,095,501.09
  5. Step 5: Solve for x
    x = 106,111,095,501.09/303,994.81
  6. Step 6: Final answer
    x = 349,055.62

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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.