Finding the Fourth Proportional to 207,992.81, 311,965.11 and 58,245.09
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Solution
The fourth proportional to 207,992.81, 311,965.11 and 58,245.09 is: 87,360.89
Step by Step Solution
- Step 1: Write the proportion equation
207,992.81 : 311,965.11 = 58,245.09 : x - Step 2: Convert to fraction form
207,992.81/311,965.11 = 58,245.09/x - Step 3: Cross multiply
207,992.81x = 311,965.11 × 58,245.09 - Step 4: Simplify right side
207,992.81x = 18,170,435,908.81 - Step 5: Solve for x
x = 18,170,435,908.81/207,992.81 - Step 6: Final answer
x = 87,360.89
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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.