Finding the Fourth Proportional to 269.76, 404.56 and 77.34
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Solution
The fourth proportional to 269.76, 404.56 and 77.34 is: 115.99
Step by Step Solution
- Step 1: Write the proportion equation
269.76 : 404.56 = 77.34 : x - Step 2: Convert to fraction form
269.76/404.56 = 77.34/x - Step 3: Cross multiply
269.76x = 404.56 × 77.34 - Step 4: Simplify right side
269.76x = 31,288.67 - Step 5: Solve for x
x = 31,288.67/269.76 - Step 6: Final answer
x = 115.99
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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.