Home / 279,839.22-386,188.55-159,000.97

Finding the Fourth Proportional to 279,839.22, 386,188.55 and 159,000.97

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Solution

The fourth proportional to 279,839.22, 386,188.55 and 159,000.97 is: 219,427.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,839.22 : 386,188.55 = 159,000.97 : x
  2. Step 2: Convert to fraction form
    279,839.22/386,188.55 = 159,000.97/x
  3. Step 3: Cross multiply
    279,839.22x = 386,188.55 × 159,000.97
  4. Step 4: Simplify right side
    279,839.22x = 61,404,355,217.12
  5. Step 5: Solve for x
    x = 61,404,355,217.12/279,839.22
  6. Step 6: Final answer
    x = 219,427.27

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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.