Finding the Fourth Proportional to 171.81, 236.58 and 150.99
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Solution
The fourth proportional to 171.81, 236.58 and 150.99 is: 207.91
Step by Step Solution
- Step 1: Write the proportion equation
171.81 : 236.58 = 150.99 : x - Step 2: Convert to fraction form
171.81/236.58 = 150.99/x - Step 3: Cross multiply
171.81x = 236.58 × 150.99 - Step 4: Simplify right side
171.81x = 35,721.21 - Step 5: Solve for x
x = 35,721.21/171.81 - Step 6: Final answer
x = 207.91
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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.