Home / 221,480.03-305,665.41-135,496.29

Finding the Fourth Proportional to 221,480.03, 305,665.41 and 135,496.29

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Solution

The fourth proportional to 221,480.03, 305,665.41 and 135,496.29 is: 186,998.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,480.03 : 305,665.41 = 135,496.29 : x
  2. Step 2: Convert to fraction form
    221,480.03/305,665.41 = 135,496.29/x
  3. Step 3: Cross multiply
    221,480.03x = 305,665.41 × 135,496.29
  4. Step 4: Simplify right side
    221,480.03x = 41,416,530,119.06
  5. Step 5: Solve for x
    x = 41,416,530,119.06/221,480.03
  6. Step 6: Final answer
    x = 186,998.93

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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.