Home / 218,853.09-301,999.19-123,383.25

Finding the Fourth Proportional to 218,853.09, 301,999.19 and 123,383.25

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Solution

The fourth proportional to 218,853.09, 301,999.19 and 123,383.25 is: 170,258.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,853.09 : 301,999.19 = 123,383.25 : x
  2. Step 2: Convert to fraction form
    218,853.09/301,999.19 = 123,383.25/x
  3. Step 3: Cross multiply
    218,853.09x = 301,999.19 × 123,383.25
  4. Step 4: Simplify right side
    218,853.09x = 37,261,640,942.65
  5. Step 5: Solve for x
    x = 37,261,640,942.65/218,853.09
  6. Step 6: Final answer
    x = 170,258.69

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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.