Finding the Fourth Proportional to 169.67, 254.36 and 66.99
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Solution
The fourth proportional to 169.67, 254.36 and 66.99 is: 100.43
Step by Step Solution
- Step 1: Write the proportion equation
169.67 : 254.36 = 66.99 : x - Step 2: Convert to fraction form
169.67/254.36 = 66.99/x - Step 3: Cross multiply
169.67x = 254.36 × 66.99 - Step 4: Simplify right side
169.67x = 17,039.24 - Step 5: Solve for x
x = 17,039.24/169.67 - Step 6: Final answer
x = 100.43
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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.