Home / 248,719.72-343,223.22-135,540.04

Finding the Fourth Proportional to 248,719.72, 343,223.22 and 135,540.04

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Solution

The fourth proportional to 248,719.72, 343,223.22 and 135,540.04 is: 187,039.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,719.72 : 343,223.22 = 135,540.04 : x
  2. Step 2: Convert to fraction form
    248,719.72/343,223.22 = 135,540.04/x
  3. Step 3: Cross multiply
    248,719.72x = 343,223.22 × 135,540.04
  4. Step 4: Simplify right side
    248,719.72x = 46,520,488,967.73
  5. Step 5: Solve for x
    x = 46,520,488,967.73/248,719.72
  6. Step 6: Final answer
    x = 187,039.81

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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.