Finding the Third Proportional to 87,138.28 and 190,861.31
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Solution
The third proportional to 87,138.28 and 190,861.31 is: 418,048.65
Step by Step Solution
- Step 1: Write the proportion equation
87,138.28 : 190,861.31 = 190,861.31 : x - Step 2: Convert to fraction form
87,138.28/190,861.31 = 190,861.31/x - Step 3: Cross multiply
87,138.28x = 190,861.31 × 190,861.31 - Step 4: Simplify right side
87,138.28x = 36,428,040,609.22 - Step 5: Solve for x
x = 36,428,040,609.22/87,138.28 - Step 6: Final answer
x = 418,048.65
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Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.