Finding the Fourth Proportional to 201,821.80, 302,732.70 and 130,858.60
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Solution
The fourth proportional to 201,821.80, 302,732.70 and 130,858.60 is: 196,287.90
Step by Step Solution
- Step 1: Write the proportion equation
201,821.80 : 302,732.70 = 130,858.60 : x - Step 2: Convert to fraction form
201,821.80/302,732.70 = 130,858.60/x - Step 3: Cross multiply
201,821.80x = 302,732.70 × 130,858.60 - Step 4: Simplify right side
201,821.80x = 39,615,177,296.22 - Step 5: Solve for x
x = 39,615,177,296.22/201,821.80 - Step 6: Final answer
x = 196,287.90
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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.