Home / 258,481.28-356,736.30-145,304.12

Finding the Fourth Proportional to 258,481.28, 356,736.30 and 145,304.12

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Solution

The fourth proportional to 258,481.28, 356,736.30 and 145,304.12 is: 200,537.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,481.28 : 356,736.30 = 145,304.12 : x
  2. Step 2: Convert to fraction form
    258,481.28/356,736.30 = 145,304.12/x
  3. Step 3: Cross multiply
    258,481.28x = 356,736.30 × 145,304.12
  4. Step 4: Simplify right side
    258,481.28x = 51,835,254,143.56
  5. Step 5: Solve for x
    x = 51,835,254,143.56/258,481.28
  6. Step 6: Final answer
    x = 200,537.75

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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.