Home / 219,896.06-303,489.12-139,331.07

Finding the Fourth Proportional to 219,896.06, 303,489.12 and 139,331.07

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Solution

The fourth proportional to 219,896.06, 303,489.12 and 139,331.07 is: 192,297.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,896.06 : 303,489.12 = 139,331.07 : x
  2. Step 2: Convert to fraction form
    219,896.06/303,489.12 = 139,331.07/x
  3. Step 3: Cross multiply
    219,896.06x = 303,489.12 × 139,331.07
  4. Step 4: Simplify right side
    219,896.06x = 42,285,464,438.55
  5. Step 5: Solve for x
    x = 42,285,464,438.55/219,896.06
  6. Step 6: Final answer
    x = 192,297.51

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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.