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Finding the Fourth Proportional to 253,694.80, 350,086.33 and 138,973.94

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Solution

The fourth proportional to 253,694.80, 350,086.33 and 138,973.94 is: 191,777.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,694.80 : 350,086.33 = 138,973.94 : x
  2. Step 2: Convert to fraction form
    253,694.80/350,086.33 = 138,973.94/x
  3. Step 3: Cross multiply
    253,694.80x = 350,086.33 × 138,973.94
  4. Step 4: Simplify right side
    253,694.80x = 48,652,876,356.35
  5. Step 5: Solve for x
    x = 48,652,876,356.35/253,694.80
  6. Step 6: Final answer
    x = 191,777.19

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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.