Finding the Third Proportional to 915.75 and 999
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Solution
The third proportional to 915.75 and 999 is: 1,089.82
Step by Step Solution
- Step 1: Write the proportion equation
915.75 : 999 = 999 : x - Step 2: Convert to fraction form
915.75/999 = 999/x - Step 3: Cross multiply
915.75x = 999 × 999 - Step 4: Simplify right side
915.75x = 998,001 - Step 5: Solve for x
x = 998,001/915.75 - Step 6: Final answer
x = 1,089.82
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Why These Related Problems?
These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.