Finding the Fourth Proportional to 207.36, 286.02 and 145.14
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Solution
The fourth proportional to 207.36, 286.02 and 145.14 is: 200.20
Step by Step Solution
- Step 1: Write the proportion equation
207.36 : 286.02 = 145.14 : x - Step 2: Convert to fraction form
207.36/286.02 = 145.14/x - Step 3: Cross multiply
207.36x = 286.02 × 145.14 - Step 4: Simplify right side
207.36x = 41,512.94 - Step 5: Solve for x
x = 41,512.94/207.36 - Step 6: Final answer
x = 200.20
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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.