Home / 279,942.54-386,328.06-172,583.52

Finding the Fourth Proportional to 279,942.54, 386,328.06 and 172,583.52

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Solution

The fourth proportional to 279,942.54, 386,328.06 and 172,583.52 is: 238,169.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,942.54 : 386,328.06 = 172,583.52 : x
  2. Step 2: Convert to fraction form
    279,942.54/386,328.06 = 172,583.52/x
  3. Step 3: Cross multiply
    279,942.54x = 386,328.06 × 172,583.52
  4. Step 4: Simplify right side
    279,942.54x = 66,673,856,469.57
  5. Step 5: Solve for x
    x = 66,673,856,469.57/279,942.54
  6. Step 6: Final answer
    x = 238,169.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.