Finding the Third Proportional to 128,280.75 and 201,229.75
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Solution
The third proportional to 128,280.75 and 201,229.75 is: 315,662.42
Step by Step Solution
- Step 1: Write the proportion equation
128,280.75 : 201,229.75 = 201,229.75 : x - Step 2: Convert to fraction form
128,280.75/201,229.75 = 201,229.75/x - Step 3: Cross multiply
128,280.75x = 201,229.75 × 201,229.75 - Step 4: Simplify right side
128,280.75x = 40,493,412,285.06 - Step 5: Solve for x
x = 40,493,412,285.06/128,280.75 - Step 6: Final answer
x = 315,662.42
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These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.