Finding the Third Proportional to 128,279.75 and 201,231.75
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Solution
The third proportional to 128,279.75 and 201,231.75 is: 315,671.16
Step by Step Solution
- Step 1: Write the proportion equation
128,279.75 : 201,231.75 = 201,231.75 : x - Step 2: Convert to fraction form
128,279.75/201,231.75 = 201,231.75/x - Step 3: Cross multiply
128,279.75x = 201,231.75 × 201,231.75 - Step 4: Simplify right side
128,279.75x = 40,494,217,208.06 - Step 5: Solve for x
x = 40,494,217,208.06/128,279.75 - Step 6: Final answer
x = 315,671.16
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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.