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Finding the Fourth Proportional to 250,406.53, 345,578.54 and 141,520.92

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Solution

The fourth proportional to 250,406.53, 345,578.54 and 141,520.92 is: 195,308.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,406.53 : 345,578.54 = 141,520.92 : x
  2. Step 2: Convert to fraction form
    250,406.53/345,578.54 = 141,520.92/x
  3. Step 3: Cross multiply
    250,406.53x = 345,578.54 × 141,520.92
  4. Step 4: Simplify right side
    250,406.53x = 48,906,593,450.45
  5. Step 5: Solve for x
    x = 48,906,593,450.45/250,406.53
  6. Step 6: Final answer
    x = 195,308.78

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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.