Finding the Third Proportional to 78,400 and 169,375
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Solution
The third proportional to 78,400 and 169,375 is: 365,916.97
Step by Step Solution
- Step 1: Write the proportion equation
78,400 : 169,375 = 169,375 : x - Step 2: Convert to fraction form
78,400/169,375 = 169,375/x - Step 3: Cross multiply
78,400x = 169,375 × 169,375 - Step 4: Simplify right side
78,400x = 28,687,890,625 - Step 5: Solve for x
x = 28,687,890,625/78,400 - Step 6: Final answer
x = 365,916.97
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Why These Related Problems?
These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.