Finding the Fourth Proportional to 171.73, 236.99 and 94.11
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Solution
The fourth proportional to 171.73, 236.99 and 94.11 is: 129.87
Step by Step Solution
- Step 1: Write the proportion equation
171.73 : 236.99 = 94.11 : x - Step 2: Convert to fraction form
171.73/236.99 = 94.11/x - Step 3: Cross multiply
171.73x = 236.99 × 94.11 - Step 4: Simplify right side
171.73x = 22,303.13 - Step 5: Solve for x
x = 22,303.13/171.73 - Step 6: Final answer
x = 129.87
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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.