Finding the Fourth Proportional to 192,861.98, 289,339.16 and 80,479.68
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Solution
The fourth proportional to 192,861.98, 289,339.16 and 80,479.68 is: 120,738.80
Step by Step Solution
- Step 1: Write the proportion equation
192,861.98 : 289,339.16 = 80,479.68 : x - Step 2: Convert to fraction form
192,861.98/289,339.16 = 80,479.68/x - Step 3: Cross multiply
192,861.98x = 289,339.16 × 80,479.68 - Step 4: Simplify right side
192,861.98x = 23,285,922,605.87 - Step 5: Solve for x
x = 23,285,922,605.87/192,861.98 - Step 6: Final answer
x = 120,738.80
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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.