Home / 481,231.40-721,944.30-165,720.20

Finding the Fourth Proportional to 481,231.40, 721,944.30 and 165,720.20

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Solution

The fourth proportional to 481,231.40, 721,944.30 and 165,720.20 is: 248,613.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,231.40 : 721,944.30 = 165,720.20 : x
  2. Step 2: Convert to fraction form
    481,231.40/721,944.30 = 165,720.20/x
  3. Step 3: Cross multiply
    481,231.40x = 721,944.30 × 165,720.20
  4. Step 4: Simplify right side
    481,231.40x = 119,640,753,784.86
  5. Step 5: Solve for x
    x = 119,640,753,784.86/481,231.40
  6. Step 6: Final answer
    x = 248,613.77

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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.