Finding the Fourth Proportional to 208,519.80, 313,010.10 and 115,207.80
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Solution
The fourth proportional to 208,519.80, 313,010.10 and 115,207.80 is: 172,939.00
Step by Step Solution
- Step 1: Write the proportion equation
208,519.80 : 313,010.10 = 115,207.80 : x - Step 2: Convert to fraction form
208,519.80/313,010.10 = 115,207.80/x - Step 3: Cross multiply
208,519.80x = 313,010.10 × 115,207.80 - Step 4: Simplify right side
208,519.80x = 36,061,204,998.78 - Step 5: Solve for x
x = 36,061,204,998.78/208,519.80 - Step 6: Final answer
x = 172,939.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.