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Finding the Fourth Proportional to 245,523.98, 338,819.73 and 138,093.96

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Solution

The fourth proportional to 245,523.98, 338,819.73 and 138,093.96 is: 190,567.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,523.98 : 338,819.73 = 138,093.96 : x
  2. Step 2: Convert to fraction form
    245,523.98/338,819.73 = 138,093.96/x
  3. Step 3: Cross multiply
    245,523.98x = 338,819.73 × 138,093.96
  4. Step 4: Simplify right side
    245,523.98x = 46,788,958,241.83
  5. Step 5: Solve for x
    x = 46,788,958,241.83/245,523.98
  6. Step 6: Final answer
    x = 190,567.78

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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.