Finding the Fourth Proportional to 213,546.26, 320,512.56 and 113,790.70
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Solution
The fourth proportional to 213,546.26, 320,512.56 and 113,790.70 is: 170,788.98
Step by Step Solution
- Step 1: Write the proportion equation
213,546.26 : 320,512.56 = 113,790.70 : x - Step 2: Convert to fraction form
213,546.26/320,512.56 = 113,790.70/x - Step 3: Cross multiply
213,546.26x = 320,512.56 × 113,790.70 - Step 4: Simplify right side
213,546.26x = 36,471,348,561.19 - Step 5: Solve for x
x = 36,471,348,561.19/213,546.26 - Step 6: Final answer
x = 170,788.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.