Finding the Fourth Proportional to 212,759.73, 319,147.70 and 79,625.97
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Solution
The fourth proportional to 212,759.73, 319,147.70 and 79,625.97 is: 119,441.99
Step by Step Solution
- Step 1: Write the proportion equation
212,759.73 : 319,147.70 = 79,625.97 : x - Step 2: Convert to fraction form
212,759.73/319,147.70 = 79,625.97/x - Step 3: Cross multiply
212,759.73x = 319,147.70 × 79,625.97 - Step 4: Simplify right side
212,759.73x = 25,412,445,884.11 - Step 5: Solve for x
x = 25,412,445,884.11/212,759.73 - Step 6: Final answer
x = 119,441.99
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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.