Home / 279,147.06-418,723.11-79,467.35

Finding the Fourth Proportional to 279,147.06, 418,723.11 and 79,467.35

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Solution

The fourth proportional to 279,147.06, 418,723.11 and 79,467.35 is: 119,201.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,147.06 : 418,723.11 = 79,467.35 : x
  2. Step 2: Convert to fraction form
    279,147.06/418,723.11 = 79,467.35/x
  3. Step 3: Cross multiply
    279,147.06x = 418,723.11 × 79,467.35
  4. Step 4: Simplify right side
    279,147.06x = 33,274,813,841.84
  5. Step 5: Solve for x
    x = 33,274,813,841.84/279,147.06
  6. Step 6: Final answer
    x = 119,201.73

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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.