Finding the Fourth Proportional to 201,905.80, 302,858.70 and 68,741.80
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Solution
The fourth proportional to 201,905.80, 302,858.70 and 68,741.80 is: 103,112.70
Step by Step Solution
- Step 1: Write the proportion equation
201,905.80 : 302,858.70 = 68,741.80 : x - Step 2: Convert to fraction form
201,905.80/302,858.70 = 68,741.80/x - Step 3: Cross multiply
201,905.80x = 302,858.70 × 68,741.80 - Step 4: Simplify right side
201,905.80x = 20,819,052,183.66 - Step 5: Solve for x
x = 20,819,052,183.66/201,905.80 - Step 6: Final answer
x = 103,112.70
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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.