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Finding the Fourth Proportional to 641,216.41, 961,797.27 and 167,891.29

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Solution

The fourth proportional to 641,216.41, 961,797.27 and 167,891.29 is: 251,829.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,216.41 : 961,797.27 = 167,891.29 : x
  2. Step 2: Convert to fraction form
    641,216.41/961,797.27 = 167,891.29/x
  3. Step 3: Cross multiply
    641,216.41x = 961,797.27 × 167,891.29
  4. Step 4: Simplify right side
    641,216.41x = 161,477,384,378.78
  5. Step 5: Solve for x
    x = 161,477,384,378.78/641,216.41
  6. Step 6: Final answer
    x = 251,829.78

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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.