Finding the Fourth Proportional to 207,352.13, 311,079.29 and 67,110.75
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Solution
The fourth proportional to 207,352.13, 311,079.29 and 67,110.75 is: 100,682.66
Step by Step Solution
- Step 1: Write the proportion equation
207,352.13 : 311,079.29 = 67,110.75 : x - Step 2: Convert to fraction form
207,352.13/311,079.29 = 67,110.75/x - Step 3: Cross multiply
207,352.13x = 311,079.29 × 67,110.75 - Step 4: Simplify right side
207,352.13x = 20,876,764,125.81 - Step 5: Solve for x
x = 20,876,764,125.81/207,352.13 - Step 6: Final answer
x = 100,682.66
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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.