Finding the Fourth Proportional to 207.92, 286.68 and 201.20
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Solution
The fourth proportional to 207.92, 286.68 and 201.20 is: 277.41
Step by Step Solution
- Step 1: Write the proportion equation
207.92 : 286.68 = 201.20 : x - Step 2: Convert to fraction form
207.92/286.68 = 201.20/x - Step 3: Cross multiply
207.92x = 286.68 × 201.20 - Step 4: Simplify right side
207.92x = 57,680.02 - Step 5: Solve for x
x = 57,680.02/207.92 - Step 6: Final answer
x = 277.41
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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.