Finding the Fourth Proportional to 226,708.75, 312,859.90 and 126,106.75
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Solution
The fourth proportional to 226,708.75, 312,859.90 and 126,106.75 is: 174,028.33
Step by Step Solution
- Step 1: Write the proportion equation
226,708.75 : 312,859.90 = 126,106.75 : x - Step 2: Convert to fraction form
226,708.75/312,859.90 = 126,106.75/x - Step 3: Cross multiply
226,708.75x = 312,859.90 × 126,106.75 - Step 4: Simplify right side
226,708.75x = 39,453,745,194.33 - Step 5: Solve for x
x = 39,453,745,194.33/226,708.75 - Step 6: Final answer
x = 174,028.33
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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.