Finding the Fourth Proportional to 207.26, 285.72 and 170.36
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Solution
The fourth proportional to 207.26, 285.72 and 170.36 is: 234.85
Step by Step Solution
- Step 1: Write the proportion equation
207.26 : 285.72 = 170.36 : x - Step 2: Convert to fraction form
207.26/285.72 = 170.36/x - Step 3: Cross multiply
207.26x = 285.72 × 170.36 - Step 4: Simplify right side
207.26x = 48,675.26 - Step 5: Solve for x
x = 48,675.26/207.26 - Step 6: Final answer
x = 234.85
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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.