Finding the Fourth Proportional to 207.26, 285.99 and 118.74
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Solution
The fourth proportional to 207.26, 285.99 and 118.74 is: 163.85
Step by Step Solution
- Step 1: Write the proportion equation
207.26 : 285.99 = 118.74 : x - Step 2: Convert to fraction form
207.26/285.99 = 118.74/x - Step 3: Cross multiply
207.26x = 285.99 × 118.74 - Step 4: Simplify right side
207.26x = 33,958.45 - Step 5: Solve for x
x = 33,958.45/207.26 - Step 6: Final answer
x = 163.85
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.