Finding the Fourth Proportional to 262,960.26, 394,190.69 and 85,343.05
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Solution
The fourth proportional to 262,960.26, 394,190.69 and 85,343.05 is: 127,933.54
Step by Step Solution
- Step 1: Write the proportion equation
262,960.26 : 394,190.69 = 85,343.05 : x - Step 2: Convert to fraction form
262,960.26/394,190.69 = 85,343.05/x - Step 3: Cross multiply
262,960.26x = 394,190.69 × 85,343.05 - Step 4: Simplify right side
262,960.26x = 33,641,435,832.23 - Step 5: Solve for x
x = 33,641,435,832.23/262,960.26 - Step 6: Final answer
x = 127,933.54
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1.5x scale
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.