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Finding the Fourth Proportional to 220,162.46, 303,917.20 and 148,639.36

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Solution

The fourth proportional to 220,162.46, 303,917.20 and 148,639.36 is: 205,185.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,162.46 : 303,917.20 = 148,639.36 : x
  2. Step 2: Convert to fraction form
    220,162.46/303,917.20 = 148,639.36/x
  3. Step 3: Cross multiply
    220,162.46x = 303,917.20 × 148,639.36
  4. Step 4: Simplify right side
    220,162.46x = 45,174,058,100.99
  5. Step 5: Solve for x
    x = 45,174,058,100.99/220,162.46
  6. Step 6: Final answer
    x = 205,185.11

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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.