Home / 202,198.05-303,297.08-139,212.45

Finding the Fourth Proportional to 202,198.05, 303,297.08 and 139,212.45

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Solution

The fourth proportional to 202,198.05, 303,297.08 and 139,212.45 is: 208,818.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,198.05 : 303,297.08 = 139,212.45 : x
  2. Step 2: Convert to fraction form
    202,198.05/303,297.08 = 139,212.45/x
  3. Step 3: Cross multiply
    202,198.05x = 303,297.08 × 139,212.45
  4. Step 4: Simplify right side
    202,198.05x = 42,222,728,888.58
  5. Step 5: Solve for x
    x = 42,222,728,888.58/202,198.05
  6. Step 6: Final answer
    x = 208,818.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.