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Finding the Fourth Proportional to 303,755.40, 419,173.92 and 167,786.82

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Solution

The fourth proportional to 303,755.40, 419,173.92 and 167,786.82 is: 231,541.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,755.40 : 419,173.92 = 167,786.82 : x
  2. Step 2: Convert to fraction form
    303,755.40/419,173.92 = 167,786.82/x
  3. Step 3: Cross multiply
    303,755.40x = 419,173.92 × 167,786.82
  4. Step 4: Simplify right side
    303,755.40x = 70,331,859,063.73
  5. Step 5: Solve for x
    x = 70,331,859,063.73/303,755.40
  6. Step 6: Final answer
    x = 231,541.10

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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.