Finding the Fourth Proportional to 310.74, 465.35 and 249.99
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Solution
The fourth proportional to 310.74, 465.35 and 249.99 is: 374.37
Step by Step Solution
- Step 1: Write the proportion equation
310.74 : 465.35 = 249.99 : x - Step 2: Convert to fraction form
310.74/465.35 = 249.99/x - Step 3: Cross multiply
310.74x = 465.35 × 249.99 - Step 4: Simplify right side
310.74x = 116,329.85 - Step 5: Solve for x
x = 116,329.85/310.74 - Step 6: Final answer
x = 374.37
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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.