Finding the Fourth Proportional to 213.84, 294.99 and 140.18
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Solution
The fourth proportional to 213.84, 294.99 and 140.18 is: 193.38
Step by Step Solution
- Step 1: Write the proportion equation
213.84 : 294.99 = 140.18 : x - Step 2: Convert to fraction form
213.84/294.99 = 140.18/x - Step 3: Cross multiply
213.84x = 294.99 × 140.18 - Step 4: Simplify right side
213.84x = 41,352.15 - Step 5: Solve for x
x = 41,352.15/213.84 - Step 6: Final answer
x = 193.38
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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.