Home / 279,899.85-386,043.32-193,891.29

Finding the Fourth Proportional to 279,899.85, 386,043.32 and 193,891.29

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Solution

The fourth proportional to 279,899.85, 386,043.32 and 193,891.29 is: 267,418.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,899.85 : 386,043.32 = 193,891.29 : x
  2. Step 2: Convert to fraction form
    279,899.85/386,043.32 = 193,891.29/x
  3. Step 3: Cross multiply
    279,899.85x = 386,043.32 × 193,891.29
  4. Step 4: Simplify right side
    279,899.85x = 74,850,438,514.35
  5. Step 5: Solve for x
    x = 74,850,438,514.35/279,899.85
  6. Step 6: Final answer
    x = 267,418.64

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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.