Finding the Fourth Proportional to 330,609.36, 456,290.80 and 201,622.67
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Solution
The fourth proportional to 330,609.36, 456,290.80 and 201,622.67 is: 278,269.70
Step by Step Solution
- Step 1: Write the proportion equation
330,609.36 : 456,290.80 = 201,622.67 : x - Step 2: Convert to fraction form
330,609.36/456,290.80 = 201,622.67/x - Step 3: Cross multiply
330,609.36x = 456,290.80 × 201,622.67 - Step 4: Simplify right side
330,609.36x = 91,998,568,318.02 - Step 5: Solve for x
x = 91,998,568,318.02/330,609.36 - Step 6: Final answer
x = 278,269.70
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1.5x scale
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.