Finding the Fourth Proportional to 135,321.70, 202,982.55 and 131,433.70
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Solution
The fourth proportional to 135,321.70, 202,982.55 and 131,433.70 is: 197,150.55
Step by Step Solution
- Step 1: Write the proportion equation
135,321.70 : 202,982.55 = 131,433.70 : x - Step 2: Convert to fraction form
135,321.70/202,982.55 = 131,433.70/x - Step 3: Cross multiply
135,321.70x = 202,982.55 × 131,433.70 - Step 4: Simplify right side
135,321.70x = 26,678,747,581.94 - Step 5: Solve for x
x = 26,678,747,581.94/135,321.70 - Step 6: Final answer
x = 197,150.55
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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.