Finding the Fourth Proportional to 207,919.14, 311,917.18 and 65,800.18
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Solution
The fourth proportional to 207,919.14, 311,917.18 and 65,800.18 is: 98,712.45
Step by Step Solution
- Step 1: Write the proportion equation
207,919.14 : 311,917.18 = 65,800.18 : x - Step 2: Convert to fraction form
207,919.14/311,917.18 = 65,800.18/x - Step 3: Cross multiply
207,919.14x = 311,917.18 × 65,800.18 - Step 4: Simplify right side
207,919.14x = 20,524,206,589.09 - Step 5: Solve for x
x = 20,524,206,589.09/207,919.14 - Step 6: Final answer
x = 98,712.45
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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.