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Finding the Fourth Proportional to 343,744.49, 515,608.82 and 202,485.87

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Solution

The fourth proportional to 343,744.49, 515,608.82 and 202,485.87 is: 303,724.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,744.49 : 515,608.82 = 202,485.87 : x
  2. Step 2: Convert to fraction form
    343,744.49/515,608.82 = 202,485.87/x
  3. Step 3: Cross multiply
    343,744.49x = 515,608.82 × 202,485.87
  4. Step 4: Simplify right side
    343,744.49x = 104,403,498,195.92
  5. Step 5: Solve for x
    x = 104,403,498,195.92/343,744.49
  6. Step 6: Final answer
    x = 303,724.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.