Finding the Fourth Proportional to 207,693.19, 311,512.11 and 57,920.94
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Solution
The fourth proportional to 207,693.19, 311,512.11 and 57,920.94 is: 86,873.69
Step by Step Solution
- Step 1: Write the proportion equation
207,693.19 : 311,512.11 = 57,920.94 : x - Step 2: Convert to fraction form
207,693.19/311,512.11 = 57,920.94/x - Step 3: Cross multiply
207,693.19x = 311,512.11 × 57,920.94 - Step 4: Simplify right side
207,693.19x = 18,043,074,096.83 - Step 5: Solve for x
x = 18,043,074,096.83/207,693.19 - Step 6: Final answer
x = 86,873.69
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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.