Finding the Fourth Proportional to 207,939.92, 312,048.28 and 113,193.96
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Solution
The fourth proportional to 207,939.92, 312,048.28 and 113,193.96 is: 169,866.28
Step by Step Solution
- Step 1: Write the proportion equation
207,939.92 : 312,048.28 = 113,193.96 : x - Step 2: Convert to fraction form
207,939.92/312,048.28 = 113,193.96/x - Step 3: Cross multiply
207,939.92x = 312,048.28 × 113,193.96 - Step 4: Simplify right side
207,939.92x = 35,321,980,524.39 - Step 5: Solve for x
x = 35,321,980,524.39/207,939.92 - Step 6: Final answer
x = 169,866.28
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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.