Finding the Fourth Proportional to 303.19, 418.58 and 199.99
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Solution
The fourth proportional to 303.19, 418.58 and 199.99 is: 276.10
Step by Step Solution
- Step 1: Write the proportion equation
303.19 : 418.58 = 199.99 : x - Step 2: Convert to fraction form
303.19/418.58 = 199.99/x - Step 3: Cross multiply
303.19x = 418.58 × 199.99 - Step 4: Simplify right side
303.19x = 83,710.81 - Step 5: Solve for x
x = 83,710.81/303.19 - Step 6: Final answer
x = 276.10
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.