Home / 285,938.53-394,589.01-158,611.39

Finding the Fourth Proportional to 285,938.53, 394,589.01 and 158,611.39

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Solution

The fourth proportional to 285,938.53, 394,589.01 and 158,611.39 is: 218,880.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,938.53 : 394,589.01 = 158,611.39 : x
  2. Step 2: Convert to fraction form
    285,938.53/394,589.01 = 158,611.39/x
  3. Step 3: Cross multiply
    285,938.53x = 394,589.01 × 158,611.39
  4. Step 4: Simplify right side
    285,938.53x = 62,586,311,354.82
  5. Step 5: Solve for x
    x = 62,586,311,354.82/285,938.53
  6. Step 6: Final answer
    x = 218,880.30

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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.