Finding the Fourth Proportional to 511,149.26, 705,390.76 and 281,714.96
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Solution
The fourth proportional to 511,149.26, 705,390.76 and 281,714.96 is: 388,769.28
Step by Step Solution
- Step 1: Write the proportion equation
511,149.26 : 705,390.76 = 281,714.96 : x - Step 2: Convert to fraction form
511,149.26/705,390.76 = 281,714.96/x - Step 3: Cross multiply
511,149.26x = 705,390.76 × 281,714.96 - Step 4: Simplify right side
511,149.26x = 198,719,129,737.77 - Step 5: Solve for x
x = 198,719,129,737.77/511,149.26 - Step 6: Final answer
x = 388,769.28
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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.