Finding the Third Proportional to 321 and 845
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Solution
The third proportional to 321 and 845 is: 2,224.38
Step by Step Solution
- Step 1: Write the proportion equation
321 : 845 = 845 : x - Step 2: Convert to fraction form
321/845 = 845/x - Step 3: Cross multiply
321x = 845 × 845 - Step 4: Simplify right side
321x = 714,025 - Step 5: Solve for x
x = 714,025/321 - Step 6: Final answer
x = 2,224.38
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Why These Related Problems?
These problems maintain the same ratio (2.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.