Finding the Fourth Proportional to 612,161.38, 917,716.16 and 212,750.26
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Solution
The fourth proportional to 612,161.38, 917,716.16 and 212,750.26 is: 318,942.61
Step by Step Solution
- Step 1: Write the proportion equation
612,161.38 : 917,716.16 = 212,750.26 : x - Step 2: Convert to fraction form
612,161.38/917,716.16 = 212,750.26/x - Step 3: Cross multiply
612,161.38x = 917,716.16 × 212,750.26 - Step 4: Simplify right side
612,161.38x = 195,244,347,057.62 - Step 5: Solve for x
x = 195,244,347,057.62/612,161.38 - Step 6: Final answer
x = 318,942.61
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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.