Finding the Fourth Proportional to 157.76, 236.36 and 103.44
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Solution
The fourth proportional to 157.76, 236.36 and 103.44 is: 154.98
Step by Step Solution
- Step 1: Write the proportion equation
157.76 : 236.36 = 103.44 : x - Step 2: Convert to fraction form
157.76/236.36 = 103.44/x - Step 3: Cross multiply
157.76x = 236.36 × 103.44 - Step 4: Simplify right side
157.76x = 24,449.08 - Step 5: Solve for x
x = 24,449.08/157.76 - Step 6: Final answer
x = 154.98
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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.