Home / 248,736.20-343,254.66-135,557.96

Finding the Fourth Proportional to 248,736.20, 343,254.66 and 135,557.96

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Solution

The fourth proportional to 248,736.20, 343,254.66 and 135,557.96 is: 187,069.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,736.20 : 343,254.66 = 135,557.96 : x
  2. Step 2: Convert to fraction form
    248,736.20/343,254.66 = 135,557.96/x
  3. Step 3: Cross multiply
    248,736.20x = 343,254.66 × 135,557.96
  4. Step 4: Simplify right side
    248,736.20x = 46,530,901,470.09
  5. Step 5: Solve for x
    x = 46,530,901,470.09/248,736.20
  6. Step 6: Final answer
    x = 187,069.28

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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.