Finding the Fourth Proportional to 207.42, 286.19 and 144.44
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Solution
The fourth proportional to 207.42, 286.19 and 144.44 is: 199.28
Step by Step Solution
- Step 1: Write the proportion equation
207.42 : 286.19 = 144.44 : x - Step 2: Convert to fraction form
207.42/286.19 = 144.44/x - Step 3: Cross multiply
207.42x = 286.19 × 144.44 - Step 4: Simplify right side
207.42x = 41,335.13 - Step 5: Solve for x
x = 41,335.13/207.42 - Step 6: Final answer
x = 199.28
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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.