Finding the Fourth Proportional to 213,957.07, 320,939.25 and 80,899.99
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Solution
The fourth proportional to 213,957.07, 320,939.25 and 80,899.99 is: 121,351.36
Step by Step Solution
- Step 1: Write the proportion equation
213,957.07 : 320,939.25 = 80,899.99 : x - Step 2: Convert to fraction form
213,957.07/320,939.25 = 80,899.99/x - Step 3: Cross multiply
213,957.07x = 320,939.25 × 80,899.99 - Step 4: Simplify right side
213,957.07x = 25,963,981,313.26 - Step 5: Solve for x
x = 25,963,981,313.26/213,957.07 - Step 6: Final answer
x = 121,351.36
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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.