Home / 285,944.58-394,650.81-158,661.18

Finding the Fourth Proportional to 285,944.58, 394,650.81 and 158,661.18

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Solution

The fourth proportional to 285,944.58, 394,650.81 and 158,661.18 is: 218,978.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,944.58 : 394,650.81 = 158,661.18 : x
  2. Step 2: Convert to fraction form
    285,944.58/394,650.81 = 158,661.18/x
  3. Step 3: Cross multiply
    285,944.58x = 394,650.81 × 158,661.18
  4. Step 4: Simplify right side
    285,944.58x = 62,615,763,202.56
  5. Step 5: Solve for x
    x = 62,615,763,202.56/285,944.58
  6. Step 6: Final answer
    x = 218,978.67

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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.