Finding the Third Proportional to 127.50 and 187.50
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Solution
The third proportional to 127.50 and 187.50 is: 275.74
Step by Step Solution
- Step 1: Write the proportion equation
127.50 : 187.50 = 187.50 : x - Step 2: Convert to fraction form
127.50/187.50 = 187.50/x - Step 3: Cross multiply
127.50x = 187.50 × 187.50 - Step 4: Simplify right side
127.50x = 35,156.25 - Step 5: Solve for x
x = 35,156.25/127.50 - Step 6: Final answer
x = 275.74
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Why These Related Problems?
These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.