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Finding the Fourth Proportional to 220,287.80, 303,993.42 and 119,685.08

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Solution

The fourth proportional to 220,287.80, 303,993.42 and 119,685.08 is: 165,163.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,287.80 : 303,993.42 = 119,685.08 : x
  2. Step 2: Convert to fraction form
    220,287.80/303,993.42 = 119,685.08/x
  3. Step 3: Cross multiply
    220,287.80x = 303,993.42 × 119,685.08
  4. Step 4: Simplify right side
    220,287.80x = 36,383,476,792.17
  5. Step 5: Solve for x
    x = 36,383,476,792.17/220,287.80
  6. Step 6: Final answer
    x = 165,163.38

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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.