Home / 427,387.20-641,229.30-161,224.44

Finding the Fourth Proportional to 427,387.20, 641,229.30 and 161,224.44

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Solution

The fourth proportional to 427,387.20, 641,229.30 and 161,224.44 is: 241,892.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,387.20 : 641,229.30 = 161,224.44 : x
  2. Step 2: Convert to fraction form
    427,387.20/641,229.30 = 161,224.44/x
  3. Step 3: Cross multiply
    427,387.20x = 641,229.30 × 161,224.44
  4. Step 4: Simplify right side
    427,387.20x = 103,381,834,804.09
  5. Step 5: Solve for x
    x = 103,381,834,804.09/427,387.20
  6. Step 6: Final answer
    x = 241,892.68

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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.