Finding the Fourth Proportional to 204,380.40, 306,716.40 and 115,539.60
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Solution
The fourth proportional to 204,380.40, 306,716.40 and 115,539.60 is: 173,391.82
Step by Step Solution
- Step 1: Write the proportion equation
204,380.40 : 306,716.40 = 115,539.60 : x - Step 2: Convert to fraction form
204,380.40/306,716.40 = 115,539.60/x - Step 3: Cross multiply
204,380.40x = 306,716.40 × 115,539.60 - Step 4: Simplify right side
204,380.40x = 35,437,890,169.44 - Step 5: Solve for x
x = 35,437,890,169.44/204,380.40 - Step 6: Final answer
x = 173,391.82
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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.