Home / 279,609.08-419,382.23-77,233.95

Finding the Fourth Proportional to 279,609.08, 419,382.23 and 77,233.95

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Solution

The fourth proportional to 279,609.08, 419,382.23 and 77,233.95 is: 115,842.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,609.08 : 419,382.23 = 77,233.95 : x
  2. Step 2: Convert to fraction form
    279,609.08/419,382.23 = 77,233.95/x
  3. Step 3: Cross multiply
    279,609.08x = 419,382.23 × 77,233.95
  4. Step 4: Simplify right side
    279,609.08x = 32,390,545,796.54
  5. Step 5: Solve for x
    x = 32,390,545,796.54/279,609.08
  6. Step 6: Final answer
    x = 115,842.26

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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.