Finding the Third Proportional to 76,872.38 and 168,879.09
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Solution
The third proportional to 76,872.38 and 168,879.09 is: 371,006.47
Step by Step Solution
- Step 1: Write the proportion equation
76,872.38 : 168,879.09 = 168,879.09 : x - Step 2: Convert to fraction form
76,872.38/168,879.09 = 168,879.09/x - Step 3: Cross multiply
76,872.38x = 168,879.09 × 168,879.09 - Step 4: Simplify right side
76,872.38x = 28,520,148,305.82 - Step 5: Solve for x
x = 28,520,148,305.82/76,872.38 - Step 6: Final answer
x = 371,006.47
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These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.