Home / 279,499.28-419,421.24-179,723.12

Finding the Fourth Proportional to 279,499.28, 419,421.24 and 179,723.12

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Solution

The fourth proportional to 279,499.28, 419,421.24 and 179,723.12 is: 269,695.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,499.28 : 419,421.24 = 179,723.12 : x
  2. Step 2: Convert to fraction form
    279,499.28/419,421.24 = 179,723.12/x
  3. Step 3: Cross multiply
    279,499.28x = 419,421.24 × 179,723.12
  4. Step 4: Simplify right side
    279,499.28x = 75,379,693,847.07
  5. Step 5: Solve for x
    x = 75,379,693,847.07/279,499.28
  6. Step 6: Final answer
    x = 269,695.48

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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.