Finding the Fourth Proportional to 175.26, 262.80 and 66.99
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Solution
The fourth proportional to 175.26, 262.80 and 66.99 is: 100.45
Step by Step Solution
- Step 1: Write the proportion equation
175.26 : 262.80 = 66.99 : x - Step 2: Convert to fraction form
175.26/262.80 = 66.99/x - Step 3: Cross multiply
175.26x = 262.80 × 66.99 - Step 4: Simplify right side
175.26x = 17,604.97 - Step 5: Solve for x
x = 17,604.97/175.26 - Step 6: Final answer
x = 100.45
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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.