Finding the Fourth Proportional to 128,614.40, 192,944.28 and 44,367.92
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Solution
The fourth proportional to 128,614.40, 192,944.28 and 44,367.92 is: 66,559.70
Step by Step Solution
- Step 1: Write the proportion equation
128,614.40 : 192,944.28 = 44,367.92 : x - Step 2: Convert to fraction form
128,614.40/192,944.28 = 44,367.92/x - Step 3: Cross multiply
128,614.40x = 192,944.28 × 44,367.92 - Step 4: Simplify right side
128,614.40x = 8,560,536,379.50 - Step 5: Solve for x
x = 8,560,536,379.50/128,614.40 - Step 6: Final answer
x = 66,559.70
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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.