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Finding the Fourth Proportional to 303,975.12, 419,493.96 and 169,847.76

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Solution

The fourth proportional to 303,975.12, 419,493.96 and 169,847.76 is: 234,394.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,975.12 : 419,493.96 = 169,847.76 : x
  2. Step 2: Convert to fraction form
    303,975.12/419,493.96 = 169,847.76/x
  3. Step 3: Cross multiply
    303,975.12x = 419,493.96 × 169,847.76
  4. Step 4: Simplify right side
    303,975.12x = 71,250,109,439.53
  5. Step 5: Solve for x
    x = 71,250,109,439.53/303,975.12
  6. Step 6: Final answer
    x = 234,394.54

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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.