Home / 278,268.03-417,418.61-107,491.05

Finding the Fourth Proportional to 278,268.03, 417,418.61 and 107,491.05

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Solution

The fourth proportional to 278,268.03, 417,418.61 and 107,491.05 is: 161,242.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,268.03 : 417,418.61 = 107,491.05 : x
  2. Step 2: Convert to fraction form
    278,268.03/417,418.61 = 107,491.05/x
  3. Step 3: Cross multiply
    278,268.03x = 417,418.61 × 107,491.05
  4. Step 4: Simplify right side
    278,268.03x = 44,868,764,140.99
  5. Step 5: Solve for x
    x = 44,868,764,140.99/278,268.03
  6. Step 6: Final answer
    x = 161,242.97

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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.