Home / 206,175.78-284,517.77-121,298.31

Finding the Fourth Proportional to 206,175.78, 284,517.77 and 121,298.31

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Solution

The fourth proportional to 206,175.78, 284,517.77 and 121,298.31 is: 167,388.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,175.78 : 284,517.77 = 121,298.31 : x
  2. Step 2: Convert to fraction form
    206,175.78/284,517.77 = 121,298.31/x
  3. Step 3: Cross multiply
    206,175.78x = 284,517.77 × 121,298.31
  4. Step 4: Simplify right side
    206,175.78x = 34,511,524,059.48
  5. Step 5: Solve for x
    x = 34,511,524,059.48/206,175.78
  6. Step 6: Final answer
    x = 167,388.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.