Home / 330,144.62-455,708.09-194,172.75

Finding the Fourth Proportional to 330,144.62, 455,708.09 and 194,172.75

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Solution

The fourth proportional to 330,144.62, 455,708.09 and 194,172.75 is: 268,022.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,144.62 : 455,708.09 = 194,172.75 : x
  2. Step 2: Convert to fraction form
    330,144.62/455,708.09 = 194,172.75/x
  3. Step 3: Cross multiply
    330,144.62x = 455,708.09 × 194,172.75
  4. Step 4: Simplify right side
    330,144.62x = 88,486,093,517.98
  5. Step 5: Solve for x
    x = 88,486,093,517.98/330,144.62
  6. Step 6: Final answer
    x = 268,022.22

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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.