Home / 285,741.37-394,327.62-156,691.58

Finding the Fourth Proportional to 285,741.37, 394,327.62 and 156,691.58

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Solution

The fourth proportional to 285,741.37, 394,327.62 and 156,691.58 is: 216,236.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,741.37 : 394,327.62 = 156,691.58 : x
  2. Step 2: Convert to fraction form
    285,741.37/394,327.62 = 156,691.58/x
  3. Step 3: Cross multiply
    285,741.37x = 394,327.62 × 156,691.58
  4. Step 4: Simplify right side
    285,741.37x = 61,787,817,815.44
  5. Step 5: Solve for x
    x = 61,787,817,815.44/285,741.37
  6. Step 6: Final answer
    x = 216,236.87

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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.