Finding the Fourth Proportional to 192,605.44, 288,597.12 and 74,138.08
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Solution
The fourth proportional to 192,605.44, 288,597.12 and 74,138.08 is: 111,087.39
Step by Step Solution
- Step 1: Write the proportion equation
192,605.44 : 288,597.12 = 74,138.08 : x - Step 2: Convert to fraction form
192,605.44/288,597.12 = 74,138.08/x - Step 3: Cross multiply
192,605.44x = 288,597.12 × 74,138.08 - Step 4: Simplify right side
192,605.44x = 21,396,036,370.33 - Step 5: Solve for x
x = 21,396,036,370.33/192,605.44 - Step 6: Final answer
x = 111,087.39
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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.