Finding the Fourth Proportional to 612,161.75, 917,716.72 and 212,750.63
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Solution
The fourth proportional to 612,161.75, 917,716.72 and 212,750.63 is: 318,943.17
Step by Step Solution
- Step 1: Write the proportion equation
612,161.75 : 917,716.72 = 212,750.63 : x - Step 2: Convert to fraction form
612,161.75/917,716.72 = 212,750.63/x - Step 3: Cross multiply
612,161.75x = 917,716.72 × 212,750.63 - Step 4: Simplify right side
612,161.75x = 195,244,810,341.53 - Step 5: Solve for x
x = 195,244,810,341.53/612,161.75 - Step 6: Final answer
x = 318,943.17
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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.