Finding the Fourth Proportional to 135,313.20, 202,982.60 and 36,817.20
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Solution
The fourth proportional to 135,313.20, 202,982.60 and 36,817.20 is: 55,229.28
Step by Step Solution
- Step 1: Write the proportion equation
135,313.20 : 202,982.60 = 36,817.20 : x - Step 2: Convert to fraction form
135,313.20/202,982.60 = 36,817.20/x - Step 3: Cross multiply
135,313.20x = 202,982.60 × 36,817.20 - Step 4: Simplify right side
135,313.20x = 7,473,250,980.72 - Step 5: Solve for x
x = 7,473,250,980.72/135,313.20 - Step 6: Final answer
x = 55,229.28
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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.