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Finding the Fourth Proportional to 250,169.20, 345,232.92 and 136,990.96

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Solution

The fourth proportional to 250,169.20, 345,232.92 and 136,990.96 is: 189,047.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,169.20 : 345,232.92 = 136,990.96 : x
  2. Step 2: Convert to fraction form
    250,169.20/345,232.92 = 136,990.96/x
  3. Step 3: Cross multiply
    250,169.20x = 345,232.92 × 136,990.96
  4. Step 4: Simplify right side
    250,169.20x = 47,293,789,134.40
  5. Step 5: Solve for x
    x = 47,293,789,134.40/250,169.20
  6. Step 6: Final answer
    x = 189,047.21

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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.