Finding the Fourth Proportional to 207.55, 286.64 and 170.97
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Solution
The fourth proportional to 207.55, 286.64 and 170.97 is: 236.12
Step by Step Solution
- Step 1: Write the proportion equation
207.55 : 286.64 = 170.97 : x - Step 2: Convert to fraction form
207.55/286.64 = 170.97/x - Step 3: Cross multiply
207.55x = 286.64 × 170.97 - Step 4: Simplify right side
207.55x = 49,006.84 - Step 5: Solve for x
x = 49,006.84/207.55 - Step 6: Final answer
x = 236.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.