Finding the Fourth Proportional to 397,729.26, 548,860.62 and 218,881.26
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Solution
The fourth proportional to 397,729.26, 548,860.62 and 218,881.26 is: 302,052.97
Step by Step Solution
- Step 1: Write the proportion equation
397,729.26 : 548,860.62 = 218,881.26 : x - Step 2: Convert to fraction form
397,729.26/548,860.62 = 218,881.26/x - Step 3: Cross multiply
397,729.26x = 548,860.62 × 218,881.26 - Step 4: Simplify right side
397,729.26x = 120,135,304,069.98 - Step 5: Solve for x
x = 120,135,304,069.98/397,729.26 - Step 6: Final answer
x = 302,052.97
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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.