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Finding the Fourth Proportional to 220,120.71, 303,767.79 and 119,518.71

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Solution

The fourth proportional to 220,120.71, 303,767.79 and 119,518.71 is: 164,936.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,120.71 : 303,767.79 = 119,518.71 : x
  2. Step 2: Convert to fraction form
    220,120.71/303,767.79 = 119,518.71/x
  3. Step 3: Cross multiply
    220,120.71x = 303,767.79 × 119,518.71
  4. Step 4: Simplify right side
    220,120.71x = 36,305,934,400.35
  5. Step 5: Solve for x
    x = 36,305,934,400.35/220,120.71
  6. Step 6: Final answer
    x = 164,936.48

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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.