Finding the Fourth Proportional to 213.73, 294.93 and 125.21
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Solution
The fourth proportional to 213.73, 294.93 and 125.21 is: 172.77
Step by Step Solution
- Step 1: Write the proportion equation
213.73 : 294.93 = 125.21 : x - Step 2: Convert to fraction form
213.73/294.93 = 125.21/x - Step 3: Cross multiply
213.73x = 294.93 × 125.21 - Step 4: Simplify right side
213.73x = 36,926.24 - Step 5: Solve for x
x = 36,926.24/213.73 - Step 6: Final answer
x = 172.77
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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.