Finding the Fourth Proportional to 157.53, 236.26 and 66.23
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Solution
The fourth proportional to 157.53, 236.26 and 66.23 is: 99.32
Step by Step Solution
- Step 1: Write the proportion equation
157.53 : 236.26 = 66.23 : x - Step 2: Convert to fraction form
157.53/236.26 = 66.23/x - Step 3: Cross multiply
157.53x = 236.26 × 66.23 - Step 4: Simplify right side
157.53x = 15,645.99 - Step 5: Solve for x
x = 15,645.99/157.53 - Step 6: Final answer
x = 99.32
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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.