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Finding the Fourth Proportional to 248,992.56, 343,604.16 and 135,819.36

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Solution

The fourth proportional to 248,992.56, 343,604.16 and 135,819.36 is: 187,427.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,992.56 : 343,604.16 = 135,819.36 : x
  2. Step 2: Convert to fraction form
    248,992.56/343,604.16 = 135,819.36/x
  3. Step 3: Cross multiply
    248,992.56x = 343,604.16 × 135,819.36
  4. Step 4: Simplify right side
    248,992.56x = 46,668,097,104.54
  5. Step 5: Solve for x
    x = 46,668,097,104.54/248,992.56
  6. Step 6: Final answer
    x = 187,427.68

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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.