Finding the Fourth Proportional to 205.11, 306.97 and 170.93
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Solution
The fourth proportional to 205.11, 306.97 and 170.93 is: 255.82
Step by Step Solution
- Step 1: Write the proportion equation
205.11 : 306.97 = 170.93 : x - Step 2: Convert to fraction form
205.11/306.97 = 170.93/x - Step 3: Cross multiply
205.11x = 306.97 × 170.93 - Step 4: Simplify right side
205.11x = 52,470.38 - Step 5: Solve for x
x = 52,470.38/205.11 - Step 6: Final answer
x = 255.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.