Home / 279,885.13-419,579.07-109,067.30

Finding the Fourth Proportional to 279,885.13, 419,579.07 and 109,067.30

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Solution

The fourth proportional to 279,885.13, 419,579.07 and 109,067.30 is: 163,504.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,885.13 : 419,579.07 = 109,067.30 : x
  2. Step 2: Convert to fraction form
    279,885.13/419,579.07 = 109,067.30/x
  3. Step 3: Cross multiply
    279,885.13x = 419,579.07 × 109,067.30
  4. Step 4: Simplify right side
    279,885.13x = 45,762,356,701.38
  5. Step 5: Solve for x
    x = 45,762,356,701.38/279,885.13
  6. Step 6: Final answer
    x = 163,504.07

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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.