Finding the Fourth Proportional to 157.41, 236.09 and 49.19
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Solution
The fourth proportional to 157.41, 236.09 and 49.19 is: 73.77
Step by Step Solution
- Step 1: Write the proportion equation
157.41 : 236.09 = 49.19 : x - Step 2: Convert to fraction form
157.41/236.09 = 49.19/x - Step 3: Cross multiply
157.41x = 236.09 × 49.19 - Step 4: Simplify right side
157.41x = 11,612.43 - Step 5: Solve for x
x = 11,612.43/157.41 - Step 6: Final answer
x = 73.77
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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.