Finding the Fourth Proportional to 207.26, 286.10 and 118.80
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Solution
The fourth proportional to 207.26, 286.10 and 118.80 is: 163.99
Step by Step Solution
- Step 1: Write the proportion equation
207.26 : 286.10 = 118.80 : x - Step 2: Convert to fraction form
207.26/286.10 = 118.80/x - Step 3: Cross multiply
207.26x = 286.10 × 118.80 - Step 4: Simplify right side
207.26x = 33,988.53 - Step 5: Solve for x
x = 33,988.53/207.26 - Step 6: Final answer
x = 163.99
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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.