Finding the Fourth Proportional to 218,229.05, 301,121.39 and 122,717.30
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Solution
The fourth proportional to 218,229.05, 301,121.39 and 122,717.30 is: 169,330.35
Step by Step Solution
- Step 1: Write the proportion equation
218,229.05 : 301,121.39 = 122,717.30 : x - Step 2: Convert to fraction form
218,229.05/301,121.39 = 122,717.30/x - Step 3: Cross multiply
218,229.05x = 301,121.39 × 122,717.30 - Step 4: Simplify right side
218,229.05x = 36,952,802,754.23 - Step 5: Solve for x
x = 36,952,802,754.23/218,229.05 - Step 6: Final answer
x = 169,330.35
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.