Home / 481,425.20-721,943.40-165,719.60

Finding the Fourth Proportional to 481,425.20, 721,943.40 and 165,719.60

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Solution

The fourth proportional to 481,425.20, 721,943.40 and 165,719.60 is: 248,512.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,425.20 : 721,943.40 = 165,719.60 : x
  2. Step 2: Convert to fraction form
    481,425.20/721,943.40 = 165,719.60/x
  3. Step 3: Cross multiply
    481,425.20x = 721,943.40 × 165,719.60
  4. Step 4: Simplify right side
    481,425.20x = 119,640,171,470.64
  5. Step 5: Solve for x
    x = 119,640,171,470.64/481,425.20
  6. Step 6: Final answer
    x = 248,512.48

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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.