Finding the Third Proportional to 451.50 and 645.75
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Solution
The third proportional to 451.50 and 645.75 is: 923.57
Step by Step Solution
- Step 1: Write the proportion equation
451.50 : 645.75 = 645.75 : x - Step 2: Convert to fraction form
451.50/645.75 = 645.75/x - Step 3: Cross multiply
451.50x = 645.75 × 645.75 - Step 4: Simplify right side
451.50x = 416,993.06 - Step 5: Solve for x
x = 416,993.06/451.50 - Step 6: Final answer
x = 923.57
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Why These Related Problems?
These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.