Finding the Fourth Proportional to 217,940.67, 300,756.97 and 122,446.53
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Solution
The fourth proportional to 217,940.67, 300,756.97 and 122,446.53 is: 168,975.56
Step by Step Solution
- Step 1: Write the proportion equation
217,940.67 : 300,756.97 = 122,446.53 : x - Step 2: Convert to fraction form
217,940.67/300,756.97 = 122,446.53/x - Step 3: Cross multiply
217,940.67x = 300,756.97 × 122,446.53 - Step 4: Simplify right side
217,940.67x = 36,826,647,349.81 - Step 5: Solve for x
x = 36,826,647,349.81/217,940.67 - Step 6: Final answer
x = 168,975.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.