Finding the Third Proportional to 275,869.69 and 421,823.53
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Solution
The third proportional to 275,869.69 and 421,823.53 is: 644,996.89
Step by Step Solution
- Step 1: Write the proportion equation
275,869.69 : 421,823.53 = 421,823.53 : x - Step 2: Convert to fraction form
275,869.69/421,823.53 = 421,823.53/x - Step 3: Cross multiply
275,869.69x = 421,823.53 × 421,823.53 - Step 4: Simplify right side
275,869.69x = 177,935,091,516.22 - Step 5: Solve for x
x = 177,935,091,516.22/275,869.69 - Step 6: Final answer
x = 644,996.89
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Why These Related Problems?
These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.