Home / 258,422.82-356,623.50-145,245.56

Finding the Fourth Proportional to 258,422.82, 356,623.50 and 145,245.56

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Solution

The fourth proportional to 258,422.82, 356,623.50 and 145,245.56 is: 200,438.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,422.82 : 356,623.50 = 145,245.56 : x
  2. Step 2: Convert to fraction form
    258,422.82/356,623.50 = 145,245.56/x
  3. Step 3: Cross multiply
    258,422.82x = 356,623.50 × 145,245.56
  4. Step 4: Simplify right side
    258,422.82x = 51,797,979,966.66
  5. Step 5: Solve for x
    x = 51,797,979,966.66/258,422.82
  6. Step 6: Final answer
    x = 200,438.88

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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.