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Finding the Fourth Proportional to 303,878.32, 419,330.48 and 167,910.80

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Solution

The fourth proportional to 303,878.32, 419,330.48 and 167,910.80 is: 231,704.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,878.32 : 419,330.48 = 167,910.80 : x
  2. Step 2: Convert to fraction form
    303,878.32/419,330.48 = 167,910.80/x
  3. Step 3: Cross multiply
    303,878.32x = 419,330.48 × 167,910.80
  4. Step 4: Simplify right side
    303,878.32x = 70,410,116,361.18
  5. Step 5: Solve for x
    x = 70,410,116,361.18/303,878.32
  6. Step 6: Final answer
    x = 231,704.97

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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.