Finding the Fourth Proportional to 303,119.20, 454,678.80 and 134,639.20
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Solution
The fourth proportional to 303,119.20, 454,678.80 and 134,639.20 is: 201,958.80
Step by Step Solution
- Step 1: Write the proportion equation
303,119.20 : 454,678.80 = 134,639.20 : x - Step 2: Convert to fraction form
303,119.20/454,678.80 = 134,639.20/x - Step 3: Cross multiply
303,119.20x = 454,678.80 × 134,639.20 - Step 4: Simplify right side
303,119.20x = 61,217,589,888.96 - Step 5: Solve for x
x = 61,217,589,888.96/303,119.20 - Step 6: Final answer
x = 201,958.80
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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.