Finding the Third Proportional to 128,157.75 and 197,256.75
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Solution
The third proportional to 128,157.75 and 197,256.75 is: 303,611.96
Step by Step Solution
- Step 1: Write the proportion equation
128,157.75 : 197,256.75 = 197,256.75 : x - Step 2: Convert to fraction form
128,157.75/197,256.75 = 197,256.75/x - Step 3: Cross multiply
128,157.75x = 197,256.75 × 197,256.75 - Step 4: Simplify right side
128,157.75x = 38,910,225,420.56 - Step 5: Solve for x
x = 38,910,225,420.56/128,157.75 - Step 6: Final answer
x = 303,611.96
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These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.