Finding the Fourth Proportional to 227.54, 313.94 and 129.26
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Solution
The fourth proportional to 227.54, 313.94 and 129.26 is: 178.34
Step by Step Solution
- Step 1: Write the proportion equation
227.54 : 313.94 = 129.26 : x - Step 2: Convert to fraction form
227.54/313.94 = 129.26/x - Step 3: Cross multiply
227.54x = 313.94 × 129.26 - Step 4: Simplify right side
227.54x = 40,580.99 - Step 5: Solve for x
x = 40,580.99/227.54 - Step 6: Final answer
x = 178.34
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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.