Finding the Fourth Proportional to 171.11, 236.23 and 108.99
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Solution
The fourth proportional to 171.11, 236.23 and 108.99 is: 150.47
Step by Step Solution
- Step 1: Write the proportion equation
171.11 : 236.23 = 108.99 : x - Step 2: Convert to fraction form
171.11/236.23 = 108.99/x - Step 3: Cross multiply
171.11x = 236.23 × 108.99 - Step 4: Simplify right side
171.11x = 25,746.71 - Step 5: Solve for x
x = 25,746.71/171.11 - Step 6: Final answer
x = 150.47
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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.