Finding the Third Proportional to 325 and 455
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Solution
The third proportional to 325 and 455 is: 637
Step by Step Solution
- Step 1: Write the proportion equation
325 : 455 = 455 : x - Step 2: Convert to fraction form
325/455 = 455/x - Step 3: Cross multiply
325x = 455 × 455 - Step 4: Simplify right side
325x = 207,025 - Step 5: Solve for x
x = 207,025/325 - Step 6: Final answer
x = 637
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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.