Finding the Fourth Proportional to 205.79, 283.75 and 131.99
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Solution
The fourth proportional to 205.79, 283.75 and 131.99 is: 181.99
Step by Step Solution
- Step 1: Write the proportion equation
205.79 : 283.75 = 131.99 : x - Step 2: Convert to fraction form
205.79/283.75 = 131.99/x - Step 3: Cross multiply
205.79x = 283.75 × 131.99 - Step 4: Simplify right side
205.79x = 37,451.50 - Step 5: Solve for x
x = 37,451.50/205.79 - Step 6: Final answer
x = 181.99
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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.