Finding the Third Proportional to 251 and 679
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Solution
The third proportional to 251 and 679 is: 1,836.82
Step by Step Solution
- Step 1: Write the proportion equation
251 : 679 = 679 : x - Step 2: Convert to fraction form
251/679 = 679/x - Step 3: Cross multiply
251x = 679 × 679 - Step 4: Simplify right side
251x = 461,041 - Step 5: Solve for x
x = 461,041/251 - Step 6: Final answer
x = 1,836.82
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Why These Related Problems?
These problems maintain the same ratio (2.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.