Finding the Fourth Proportional to 396,326.20, 546,912.84 and 226,571.26
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Solution
The fourth proportional to 396,326.20, 546,912.84 and 226,571.26 is: 312,658.44
Step by Step Solution
- Step 1: Write the proportion equation
396,326.20 : 546,912.84 = 226,571.26 : x - Step 2: Convert to fraction form
396,326.20/546,912.84 = 226,571.26/x - Step 3: Cross multiply
396,326.20x = 546,912.84 × 226,571.26 - Step 4: Simplify right side
396,326.20x = 123,914,731,268.98 - Step 5: Solve for x
x = 123,914,731,268.98/396,326.20 - Step 6: Final answer
x = 312,658.44
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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.