Home / 285,741.24-394,327.45-156,691.46

Finding the Fourth Proportional to 285,741.24, 394,327.45 and 156,691.46

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Solution

The fourth proportional to 285,741.24, 394,327.45 and 156,691.46 is: 216,236.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,741.24 : 394,327.45 = 156,691.46 : x
  2. Step 2: Convert to fraction form
    285,741.24/394,327.45 = 156,691.46/x
  3. Step 3: Cross multiply
    285,741.24x = 394,327.45 × 156,691.46
  4. Step 4: Simplify right side
    285,741.24x = 61,787,743,858.58
  5. Step 5: Solve for x
    x = 61,787,743,858.58/285,741.24
  6. Step 6: Final answer
    x = 216,236.70

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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.