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Finding the Fourth Proportional to 248,171.82, 342,399.87 and 140,733.42

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Solution

The fourth proportional to 248,171.82, 342,399.87 and 140,733.42 is: 194,168.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,171.82 : 342,399.87 = 140,733.42 : x
  2. Step 2: Convert to fraction form
    248,171.82/342,399.87 = 140,733.42/x
  3. Step 3: Cross multiply
    248,171.82x = 342,399.87 × 140,733.42
  4. Step 4: Simplify right side
    248,171.82x = 48,187,104,712.66
  5. Step 5: Solve for x
    x = 48,187,104,712.66/248,171.82
  6. Step 6: Final answer
    x = 194,168.32

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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.