Home / 279,964.27-419,947.94-69,602.20

Finding the Fourth Proportional to 279,964.27, 419,947.94 and 69,602.20

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Solution

The fourth proportional to 279,964.27, 419,947.94 and 69,602.20 is: 104,403.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,964.27 : 419,947.94 = 69,602.20 : x
  2. Step 2: Convert to fraction form
    279,964.27/419,947.94 = 69,602.20/x
  3. Step 3: Cross multiply
    279,964.27x = 419,947.94 × 69,602.20
  4. Step 4: Simplify right side
    279,964.27x = 29,229,301,995.81
  5. Step 5: Solve for x
    x = 29,229,301,995.81/279,964.27
  6. Step 6: Final answer
    x = 104,403.69

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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.