Finding the Fourth Proportional to 511,081.63, 705,283.14 and 281,660.17
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Solution
The fourth proportional to 511,081.63, 705,283.14 and 281,660.17 is: 388,685.79
Step by Step Solution
- Step 1: Write the proportion equation
511,081.63 : 705,283.14 = 281,660.17 : x - Step 2: Convert to fraction form
511,081.63/705,283.14 = 281,660.17/x - Step 3: Cross multiply
511,081.63x = 705,283.14 × 281,660.17 - Step 4: Simplify right side
511,081.63x = 198,650,169,110.53 - Step 5: Solve for x
x = 198,650,169,110.53/511,081.63 - Step 6: Final answer
x = 388,685.79
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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.