Home / 256,481.25-353,944.26-143,304

Finding the Fourth Proportional to 256,481.25, 353,944.26 and 143,304

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Solution

The fourth proportional to 256,481.25, 353,944.26 and 143,304 is: 197,759.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,481.25 : 353,944.26 = 143,304 : x
  2. Step 2: Convert to fraction form
    256,481.25/353,944.26 = 143,304/x
  3. Step 3: Cross multiply
    256,481.25x = 353,944.26 × 143,304
  4. Step 4: Simplify right side
    256,481.25x = 50,721,628,235.04
  5. Step 5: Solve for x
    x = 50,721,628,235.04/256,481.25
  6. Step 6: Final answer
    x = 197,759.60

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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.