Home / 279,724.36-419,732.22-111,208.68

Finding the Fourth Proportional to 279,724.36, 419,732.22 and 111,208.68

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Solution

The fourth proportional to 279,724.36, 419,732.22 and 111,208.68 is: 166,870.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,724.36 : 419,732.22 = 111,208.68 : x
  2. Step 2: Convert to fraction form
    279,724.36/419,732.22 = 111,208.68/x
  3. Step 3: Cross multiply
    279,724.36x = 419,732.22 × 111,208.68
  4. Step 4: Simplify right side
    279,724.36x = 46,677,866,139.67
  5. Step 5: Solve for x
    x = 46,677,866,139.67/279,724.36
  6. Step 6: Final answer
    x = 166,870.94

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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.