Finding the Fourth Proportional to 511,138.54, 705,375.99 and 281,704.18
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Solution
The fourth proportional to 511,138.54, 705,375.99 and 281,704.18 is: 388,754.42
Step by Step Solution
- Step 1: Write the proportion equation
511,138.54 : 705,375.99 = 281,704.18 : x - Step 2: Convert to fraction form
511,138.54/705,375.99 = 281,704.18/x - Step 3: Cross multiply
511,138.54x = 705,375.99 × 281,704.18 - Step 4: Simplify right side
511,138.54x = 198,707,364,854.64 - Step 5: Solve for x
x = 198,707,364,854.64/511,138.54 - Step 6: Final answer
x = 388,754.42
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.