Finding the Fourth Proportional to 397,326.75, 548,310.92 and 218,478.75
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Solution
The fourth proportional to 397,326.75, 548,310.92 and 218,478.75 is: 301,500.68
Step by Step Solution
- Step 1: Write the proportion equation
397,326.75 : 548,310.92 = 218,478.75 : x - Step 2: Convert to fraction form
397,326.75/548,310.92 = 218,478.75/x - Step 3: Cross multiply
397,326.75x = 548,310.92 × 218,478.75 - Step 4: Simplify right side
397,326.75x = 119,794,284,412.95 - Step 5: Solve for x
x = 119,794,284,412.95/397,326.75 - Step 6: Final answer
x = 301,500.68
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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.