Finding the Fourth Proportional to 309.44, 464.70 and 227.99
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Solution
The fourth proportional to 309.44, 464.70 and 227.99 is: 342.39
Step by Step Solution
- Step 1: Write the proportion equation
309.44 : 464.70 = 227.99 : x - Step 2: Convert to fraction form
309.44/464.70 = 227.99/x - Step 3: Cross multiply
309.44x = 464.70 × 227.99 - Step 4: Simplify right side
309.44x = 105,948.97 - Step 5: Solve for x
x = 105,948.97/309.44 - Step 6: Final answer
x = 342.39
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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.