Home / 253,660.24-380,548.68-76,170.61

Finding the Fourth Proportional to 253,660.24, 380,548.68 and 76,170.61

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Solution

The fourth proportional to 253,660.24, 380,548.68 and 76,170.61 is: 114,273.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,660.24 : 380,548.68 = 76,170.61 : x
  2. Step 2: Convert to fraction form
    253,660.24/380,548.68 = 76,170.61/x
  3. Step 3: Cross multiply
    253,660.24x = 380,548.68 × 76,170.61
  4. Step 4: Simplify right side
    253,660.24x = 28,986,625,708.80
  5. Step 5: Solve for x
    x = 28,986,625,708.80/253,660.24
  6. Step 6: Final answer
    x = 114,273.43

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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.