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Finding the Fourth Proportional to 220,137.75, 303,790.50 and 119,535.75

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Solution

The fourth proportional to 220,137.75, 303,790.50 and 119,535.75 is: 164,959.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,137.75 : 303,790.50 = 119,535.75 : x
  2. Step 2: Convert to fraction form
    220,137.75/303,790.50 = 119,535.75/x
  3. Step 3: Cross multiply
    220,137.75x = 303,790.50 × 119,535.75
  4. Step 4: Simplify right side
    220,137.75x = 36,313,825,260.38
  5. Step 5: Solve for x
    x = 36,313,825,260.38/220,137.75
  6. Step 6: Final answer
    x = 164,959.55

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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.