Finding the Fourth Proportional to 201,393.60, 301,744.80 and 131,236.80
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Solution
The fourth proportional to 201,393.60, 301,744.80 and 131,236.80 is: 196,629.99
Step by Step Solution
- Step 1: Write the proportion equation
201,393.60 : 301,744.80 = 131,236.80 : x - Step 2: Convert to fraction form
201,393.60/301,744.80 = 131,236.80/x - Step 3: Cross multiply
201,393.60x = 301,744.80 × 131,236.80 - Step 4: Simplify right side
201,393.60x = 39,600,021,968.64 - Step 5: Solve for x
x = 39,600,021,968.64/201,393.60 - Step 6: Final answer
x = 196,629.99
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1.5x scale
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.