Home / 279,845.28-419,763.60-69,485.04

Finding the Fourth Proportional to 279,845.28, 419,763.60 and 69,485.04

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Solution

The fourth proportional to 279,845.28, 419,763.60 and 69,485.04 is: 104,226.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,845.28 : 419,763.60 = 69,485.04 : x
  2. Step 2: Convert to fraction form
    279,845.28/419,763.60 = 69,485.04/x
  3. Step 3: Cross multiply
    279,845.28x = 419,763.60 × 69,485.04
  4. Step 4: Simplify right side
    279,845.28x = 29,167,290,536.54
  5. Step 5: Solve for x
    x = 29,167,290,536.54/279,845.28
  6. Step 6: Final answer
    x = 104,226.49

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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.