Finding the Third Proportional to 128,706.75 and 194,722.75
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Solution
The third proportional to 128,706.75 and 194,722.75 is: 294,599.54
Step by Step Solution
- Step 1: Write the proportion equation
128,706.75 : 194,722.75 = 194,722.75 : x - Step 2: Convert to fraction form
128,706.75/194,722.75 = 194,722.75/x - Step 3: Cross multiply
128,706.75x = 194,722.75 × 194,722.75 - Step 4: Simplify right side
128,706.75x = 37,916,949,367.56 - Step 5: Solve for x
x = 37,916,949,367.56/128,706.75 - Step 6: Final answer
x = 294,599.54
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.