Home / 481,249.40-721,971.30-165,738.20

Finding the Fourth Proportional to 481,249.40, 721,971.30 and 165,738.20

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Solution

The fourth proportional to 481,249.40, 721,971.30 and 165,738.20 is: 248,640.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,249.40 : 721,971.30 = 165,738.20 : x
  2. Step 2: Convert to fraction form
    481,249.40/721,971.30 = 165,738.20/x
  3. Step 3: Cross multiply
    481,249.40x = 721,971.30 × 165,738.20
  4. Step 4: Simplify right side
    481,249.40x = 119,658,223,713.66
  5. Step 5: Solve for x
    x = 119,658,223,713.66/481,249.40
  6. Step 6: Final answer
    x = 248,640.77

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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.