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Finding the Fourth Proportional to 250,136.88, 345,188.52 and 135,414.96

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Solution

The fourth proportional to 250,136.88, 345,188.52 and 135,414.96 is: 186,872.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,136.88 : 345,188.52 = 135,414.96 : x
  2. Step 2: Convert to fraction form
    250,136.88/345,188.52 = 135,414.96/x
  3. Step 3: Cross multiply
    250,136.88x = 345,188.52 × 135,414.96
  4. Step 4: Simplify right side
    250,136.88x = 46,743,689,628.26
  5. Step 5: Solve for x
    x = 46,743,689,628.26/250,136.88
  6. Step 6: Final answer
    x = 186,872.44

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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.