Finding the Fourth Proportional to 207.20, 286.49 and 181.26
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Solution
The fourth proportional to 207.20, 286.49 and 181.26 is: 250.62
Step by Step Solution
- Step 1: Write the proportion equation
207.20 : 286.49 = 181.26 : x - Step 2: Convert to fraction form
207.20/286.49 = 181.26/x - Step 3: Cross multiply
207.20x = 286.49 × 181.26 - Step 4: Simplify right side
207.20x = 51,929.18 - Step 5: Solve for x
x = 51,929.18/207.20 - Step 6: Final answer
x = 250.62
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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.