Finding the Fourth Proportional to 206,623.71, 309,227.83 and 143,514.99
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Solution
The fourth proportional to 206,623.71, 309,227.83 and 143,514.99 is: 214,780.91
Step by Step Solution
- Step 1: Write the proportion equation
206,623.71 : 309,227.83 = 143,514.99 : x - Step 2: Convert to fraction form
206,623.71/309,227.83 = 143,514.99/x - Step 3: Cross multiply
206,623.71x = 309,227.83 × 143,514.99 - Step 4: Simplify right side
206,623.71x = 44,378,828,571.38 - Step 5: Solve for x
x = 44,378,828,571.38/206,623.71 - Step 6: Final answer
x = 214,780.91
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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.