Finding the Fourth Proportional to 424.14, 636.22 and 115.99
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Solution
The fourth proportional to 424.14, 636.22 and 115.99 is: 173.98
Step by Step Solution
- Step 1: Write the proportion equation
424.14 : 636.22 = 115.99 : x - Step 2: Convert to fraction form
424.14/636.22 = 115.99/x - Step 3: Cross multiply
424.14x = 636.22 × 115.99 - Step 4: Simplify right side
424.14x = 73,793.06 - Step 5: Solve for x
x = 73,793.06/424.14 - Step 6: Final answer
x = 173.98
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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.