Home / 279,990.26-419,778.03-169,156.34

Finding the Fourth Proportional to 279,990.26, 419,778.03 and 169,156.34

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Solution

The fourth proportional to 279,990.26, 419,778.03 and 169,156.34 is: 253,609.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,990.26 : 419,778.03 = 169,156.34 : x
  2. Step 2: Convert to fraction form
    279,990.26/419,778.03 = 169,156.34/x
  3. Step 3: Cross multiply
    279,990.26x = 419,778.03 × 169,156.34
  4. Step 4: Simplify right side
    279,990.26x = 71,008,115,167.21
  5. Step 5: Solve for x
    x = 71,008,115,167.21/279,990.26
  6. Step 6: Final answer
    x = 253,609.23

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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.