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Finding the Fourth Proportional to 253,997.56, 350,532.42 and 140,820.31

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Solution

The fourth proportional to 253,997.56, 350,532.42 and 140,820.31 is: 194,340.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,997.56 : 350,532.42 = 140,820.31 : x
  2. Step 2: Convert to fraction form
    253,997.56/350,532.42 = 140,820.31/x
  3. Step 3: Cross multiply
    253,997.56x = 350,532.42 × 140,820.31
  4. Step 4: Simplify right side
    253,997.56x = 49,362,082,296.79
  5. Step 5: Solve for x
    x = 49,362,082,296.79/253,997.56
  6. Step 6: Final answer
    x = 194,340.78

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1.5x scale

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.