Finding the Third Proportional to 442 and 855
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Solution
The third proportional to 442 and 855 is: 1,653.90
Step by Step Solution
- Step 1: Write the proportion equation
442 : 855 = 855 : x - Step 2: Convert to fraction form
442/855 = 855/x - Step 3: Cross multiply
442x = 855 × 855 - Step 4: Simplify right side
442x = 731,025 - Step 5: Solve for x
x = 731,025/442 - Step 6: Final answer
x = 1,653.90
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Why These Related Problems?
These problems maintain the same ratio (1.93) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.