Home / 481,429.20-721,949.40-165,723.60

Finding the Fourth Proportional to 481,429.20, 721,949.40 and 165,723.60

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Solution

The fourth proportional to 481,429.20, 721,949.40 and 165,723.60 is: 248,518.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,429.20 : 721,949.40 = 165,723.60 : x
  2. Step 2: Convert to fraction form
    481,429.20/721,949.40 = 165,723.60/x
  3. Step 3: Cross multiply
    481,429.20x = 721,949.40 × 165,723.60
  4. Step 4: Simplify right side
    481,429.20x = 119,644,053,585.84
  5. Step 5: Solve for x
    x = 119,644,053,585.84/481,429.20
  6. Step 6: Final answer
    x = 248,518.48

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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.