Finding the Third Proportional to 128,944.50 and 197,121.75
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Solution
The third proportional to 128,944.50 and 197,121.75 is: 301,346.58
Step by Step Solution
- Step 1: Write the proportion equation
128,944.50 : 197,121.75 = 197,121.75 : x - Step 2: Convert to fraction form
128,944.50/197,121.75 = 197,121.75/x - Step 3: Cross multiply
128,944.50x = 197,121.75 × 197,121.75 - Step 4: Simplify right side
128,944.50x = 38,856,984,323.06 - Step 5: Solve for x
x = 38,856,984,323.06/128,944.50 - Step 6: Final answer
x = 301,346.58
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These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.