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Finding the Fourth Proportional to 250,662.70, 345,912.17 and 135,943.87

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Solution

The fourth proportional to 250,662.70, 345,912.17 and 135,943.87 is: 187,601.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,662.70 : 345,912.17 = 135,943.87 : x
  2. Step 2: Convert to fraction form
    250,662.70/345,912.17 = 135,943.87/x
  3. Step 3: Cross multiply
    250,662.70x = 345,912.17 × 135,943.87
  4. Step 4: Simplify right side
    250,662.70x = 47,024,637,525.40
  5. Step 5: Solve for x
    x = 47,024,637,525.40/250,662.70
  6. Step 6: Final answer
    x = 187,601.26

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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.