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Finding the Fourth Proportional to 250,374.54, 345,505.59 and 137,194.86

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Solution

The fourth proportional to 250,374.54, 345,505.59 and 137,194.86 is: 189,322.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,374.54 : 345,505.59 = 137,194.86 : x
  2. Step 2: Convert to fraction form
    250,374.54/345,505.59 = 137,194.86/x
  3. Step 3: Cross multiply
    250,374.54x = 345,505.59 × 137,194.86
  4. Step 4: Simplify right side
    250,374.54x = 47,401,591,049.27
  5. Step 5: Solve for x
    x = 47,401,591,049.27/250,374.54
  6. Step 6: Final answer
    x = 189,322.73

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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.