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Finding the Fourth Proportional to 285,559.68, 394,066.48 and 158,232.56

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Solution

The fourth proportional to 285,559.68, 394,066.48 and 158,232.56 is: 218,357.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,559.68 : 394,066.48 = 158,232.56 : x
  2. Step 2: Convert to fraction form
    285,559.68/394,066.48 = 158,232.56/x
  3. Step 3: Cross multiply
    285,559.68x = 394,066.48 × 158,232.56
  4. Step 4: Simplify right side
    285,559.68x = 62,354,147,940.59
  5. Step 5: Solve for x
    x = 62,354,147,940.59/285,559.68
  6. Step 6: Final answer
    x = 218,357.68

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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.