Finding the Fourth Proportional to 202,299.75, 303,464.21 and 77,640.75
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Solution
The fourth proportional to 202,299.75, 303,464.21 and 77,640.75 is: 116,466.72
Step by Step Solution
- Step 1: Write the proportion equation
202,299.75 : 303,464.21 = 77,640.75 : x - Step 2: Convert to fraction form
202,299.75/303,464.21 = 77,640.75/x - Step 3: Cross multiply
202,299.75x = 303,464.21 × 77,640.75 - Step 4: Simplify right side
202,299.75x = 23,561,188,474.35 - Step 5: Solve for x
x = 23,561,188,474.35/202,299.75 - Step 6: Final answer
x = 116,466.72
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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.