Finding the Fourth Proportional to 339,546.21, 509,540.45 and 129,185.97
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Solution
The fourth proportional to 339,546.21, 509,540.45 and 129,185.97 is: 193,863.09
Step by Step Solution
- Step 1: Write the proportion equation
339,546.21 : 509,540.45 = 129,185.97 : x - Step 2: Convert to fraction form
339,546.21/509,540.45 = 129,185.97/x - Step 3: Cross multiply
339,546.21x = 509,540.45 × 129,185.97 - Step 4: Simplify right side
339,546.21x = 65,825,476,641.56 - Step 5: Solve for x
x = 65,825,476,641.56/339,546.21 - Step 6: Final answer
x = 193,863.09
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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.