Finding the Fourth Proportional to 286.93, 395.81 and 181.99
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Solution
The fourth proportional to 286.93, 395.81 and 181.99 is: 251.05
Step by Step Solution
- Step 1: Write the proportion equation
286.93 : 395.81 = 181.99 : x - Step 2: Convert to fraction form
286.93/395.81 = 181.99/x - Step 3: Cross multiply
286.93x = 395.81 × 181.99 - Step 4: Simplify right side
286.93x = 72,031.48 - Step 5: Solve for x
x = 72,031.48/286.93 - Step 6: Final answer
x = 251.05
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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.