Finding the Fourth Proportional to 207.05, 285.67 and 141.44
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Solution
The fourth proportional to 207.05, 285.67 and 141.44 is: 195.15
Step by Step Solution
- Step 1: Write the proportion equation
207.05 : 285.67 = 141.44 : x - Step 2: Convert to fraction form
207.05/285.67 = 141.44/x - Step 3: Cross multiply
207.05x = 285.67 × 141.44 - Step 4: Simplify right side
207.05x = 40,405.53 - Step 5: Solve for x
x = 40,405.53/207.05 - Step 6: Final answer
x = 195.15
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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.