Finding the Fourth Proportional to 207.36, 286.34 and 170.64
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Solution
The fourth proportional to 207.36, 286.34 and 170.64 is: 235.63
Step by Step Solution
- Step 1: Write the proportion equation
207.36 : 286.34 = 170.64 : x - Step 2: Convert to fraction form
207.36/286.34 = 170.64/x - Step 3: Cross multiply
207.36x = 286.34 × 170.64 - Step 4: Simplify right side
207.36x = 48,860.20 - Step 5: Solve for x
x = 48,860.20/207.36 - Step 6: Final answer
x = 235.63
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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.