Home / 285,928.79-394,629.03-158,645.39

Finding the Fourth Proportional to 285,928.79, 394,629.03 and 158,645.39

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Solution

The fourth proportional to 285,928.79, 394,629.03 and 158,645.39 is: 218,956.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,928.79 : 394,629.03 = 158,645.39 : x
  2. Step 2: Convert to fraction form
    285,928.79/394,629.03 = 158,645.39/x
  3. Step 3: Cross multiply
    285,928.79x = 394,629.03 × 158,645.39
  4. Step 4: Simplify right side
    285,928.79x = 62,606,074,396.53
  5. Step 5: Solve for x
    x = 62,606,074,396.53/285,928.79
  6. Step 6: Final answer
    x = 218,956.88

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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.