Finding the Fourth Proportional to 217.70, 300.56 and 170.99
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Solution
The fourth proportional to 217.70, 300.56 and 170.99 is: 236.07
Step by Step Solution
- Step 1: Write the proportion equation
217.70 : 300.56 = 170.99 : x - Step 2: Convert to fraction form
217.70/300.56 = 170.99/x - Step 3: Cross multiply
217.70x = 300.56 × 170.99 - Step 4: Simplify right side
217.70x = 51,390.40 - Step 5: Solve for x
x = 51,390.40/217.70 - Step 6: Final answer
x = 236.07
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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.