Finding the Third Proportional to 324.75 and 489
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Solution
The third proportional to 324.75 and 489 is: 736.32
Step by Step Solution
- Step 1: Write the proportion equation
324.75 : 489 = 489 : x - Step 2: Convert to fraction form
324.75/489 = 489/x - Step 3: Cross multiply
324.75x = 489 × 489 - Step 4: Simplify right side
324.75x = 239,121 - Step 5: Solve for x
x = 239,121/324.75 - Step 6: Final answer
x = 736.32
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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.