Finding the Fourth Proportional to 206.36, 284.99 and 140.26
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Solution
The fourth proportional to 206.36, 284.99 and 140.26 is: 193.71
Step by Step Solution
- Step 1: Write the proportion equation
206.36 : 284.99 = 140.26 : x - Step 2: Convert to fraction form
206.36/284.99 = 140.26/x - Step 3: Cross multiply
206.36x = 284.99 × 140.26 - Step 4: Simplify right side
206.36x = 39,972.70 - Step 5: Solve for x
x = 39,972.70/206.36 - Step 6: Final answer
x = 193.71
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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.