Finding the Fourth Proportional to 205.33, 283.47 and 138.99
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Solution
The fourth proportional to 205.33, 283.47 and 138.99 is: 191.88
Step by Step Solution
- Step 1: Write the proportion equation
205.33 : 283.47 = 138.99 : x - Step 2: Convert to fraction form
205.33/283.47 = 138.99/x - Step 3: Cross multiply
205.33x = 283.47 × 138.99 - Step 4: Simplify right side
205.33x = 39,398.80 - Step 5: Solve for x
x = 39,398.80/205.33 - Step 6: Final answer
x = 191.88
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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.