Home / 219,896.30-303,489.45-139,331.33

Finding the Fourth Proportional to 219,896.30, 303,489.45 and 139,331.33

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Solution

The fourth proportional to 219,896.30, 303,489.45 and 139,331.33 is: 192,297.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,896.30 : 303,489.45 = 139,331.33 : x
  2. Step 2: Convert to fraction form
    219,896.30/303,489.45 = 139,331.33/x
  3. Step 3: Cross multiply
    219,896.30x = 303,489.45 × 139,331.33
  4. Step 4: Simplify right side
    219,896.30x = 42,285,587,192.02
  5. Step 5: Solve for x
    x = 42,285,587,192.02/219,896.30
  6. Step 6: Final answer
    x = 192,297.86

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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.