Finding the Fourth Proportional to 216,738.87, 299,087.61 and 121,227.12
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Solution
The fourth proportional to 216,738.87, 299,087.61 and 121,227.12 is: 167,286.70
Step by Step Solution
- Step 1: Write the proportion equation
216,738.87 : 299,087.61 = 121,227.12 : x - Step 2: Convert to fraction form
216,738.87/299,087.61 = 121,227.12/x - Step 3: Cross multiply
216,738.87x = 299,087.61 × 121,227.12 - Step 4: Simplify right side
216,738.87x = 36,257,529,587.98 - Step 5: Solve for x
x = 36,257,529,587.98/216,738.87 - Step 6: Final answer
x = 167,286.70
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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.