Home / 351,735.39-485,366.09-198,786.69

Finding the Fourth Proportional to 351,735.39, 485,366.09 and 198,786.69

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Solution

The fourth proportional to 351,735.39, 485,366.09 and 198,786.69 is: 274,309.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,735.39 : 485,366.09 = 198,786.69 : x
  2. Step 2: Convert to fraction form
    351,735.39/485,366.09 = 198,786.69/x
  3. Step 3: Cross multiply
    351,735.39x = 485,366.09 × 198,786.69
  4. Step 4: Simplify right side
    351,735.39x = 96,484,317,475.41
  5. Step 5: Solve for x
    x = 96,484,317,475.41/351,735.39
  6. Step 6: Final answer
    x = 274,309.38

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1.5x scale

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.