Finding the Fourth Proportional to 171.99, 257.99 and 160.38
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Solution
The fourth proportional to 171.99, 257.99 and 160.38 is: 240.57
Step by Step Solution
- Step 1: Write the proportion equation
171.99 : 257.99 = 160.38 : x - Step 2: Convert to fraction form
171.99/257.99 = 160.38/x - Step 3: Cross multiply
171.99x = 257.99 × 160.38 - Step 4: Simplify right side
171.99x = 41,375.63 - Step 5: Solve for x
x = 41,375.63/171.99 - Step 6: Final answer
x = 240.57
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.