Finding the Fourth Proportional to 207.12, 286.08 and 168.60
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Solution
The fourth proportional to 207.12, 286.08 and 168.60 is: 232.88
Step by Step Solution
- Step 1: Write the proportion equation
207.12 : 286.08 = 168.60 : x - Step 2: Convert to fraction form
207.12/286.08 = 168.60/x - Step 3: Cross multiply
207.12x = 286.08 × 168.60 - Step 4: Simplify right side
207.12x = 48,233.09 - Step 5: Solve for x
x = 48,233.09/207.12 - Step 6: Final answer
x = 232.88
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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.