Finding the Fourth Proportional to 207,699.44, 311,342.12 and 87,786.64
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Solution
The fourth proportional to 207,699.44, 311,342.12 and 87,786.64 is: 131,592.45
Step by Step Solution
- Step 1: Write the proportion equation
207,699.44 : 311,342.12 = 87,786.64 : x - Step 2: Convert to fraction form
207,699.44/311,342.12 = 87,786.64/x - Step 3: Cross multiply
207,699.44x = 311,342.12 × 87,786.64 - Step 4: Simplify right side
207,699.44x = 27,331,678,605.28 - Step 5: Solve for x
x = 27,331,678,605.28/207,699.44 - Step 6: Final answer
x = 131,592.45
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1.5x scale
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.