Finding the Fourth Proportional to 207.29, 285.97 and 118.75
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Solution
The fourth proportional to 207.29, 285.97 and 118.75 is: 163.82
Step by Step Solution
- Step 1: Write the proportion equation
207.29 : 285.97 = 118.75 : x - Step 2: Convert to fraction form
207.29/285.97 = 118.75/x - Step 3: Cross multiply
207.29x = 285.97 × 118.75 - Step 4: Simplify right side
207.29x = 33,958.34 - Step 5: Solve for x
x = 33,958.34/207.29 - Step 6: Final answer
x = 163.82
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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.