Home / 285,913.60-394,573.68-158,589.19

Finding the Fourth Proportional to 285,913.60, 394,573.68 and 158,589.19

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Solution

The fourth proportional to 285,913.60, 394,573.68 and 158,589.19 is: 218,860.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,913.60 : 394,573.68 = 158,589.19 : x
  2. Step 2: Convert to fraction form
    285,913.60/394,573.68 = 158,589.19/x
  3. Step 3: Cross multiply
    285,913.60x = 394,573.68 × 158,589.19
  4. Step 4: Simplify right side
    285,913.60x = 62,575,120,799.74
  5. Step 5: Solve for x
    x = 62,575,120,799.74/285,913.60
  6. Step 6: Final answer
    x = 218,860.25

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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.