Finding the Fourth Proportional to 269.99, 404.99 and 161.75
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Solution
The fourth proportional to 269.99, 404.99 and 161.75 is: 242.63
Step by Step Solution
- Step 1: Write the proportion equation
269.99 : 404.99 = 161.75 : x - Step 2: Convert to fraction form
269.99/404.99 = 161.75/x - Step 3: Cross multiply
269.99x = 404.99 × 161.75 - Step 4: Simplify right side
269.99x = 65,507.13 - Step 5: Solve for x
x = 65,507.13/269.99 - Step 6: Final answer
x = 242.63
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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.