Finding the Third Proportional to 145 and 385.50
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Solution
The third proportional to 145 and 385.50 is: 1,024.90
Step by Step Solution
- Step 1: Write the proportion equation
145 : 385.50 = 385.50 : x - Step 2: Convert to fraction form
145/385.50 = 385.50/x - Step 3: Cross multiply
145x = 385.50 × 385.50 - Step 4: Simplify right side
145x = 148,610.25 - Step 5: Solve for x
x = 148,610.25/145 - Step 6: Final answer
x = 1,024.90
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Why These Related Problems?
These problems maintain the same ratio (2.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.