Finding the Fourth Proportional to 332,757.20, 499,135.80 and 324,009.20
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Solution
The fourth proportional to 332,757.20, 499,135.80 and 324,009.20 is: 486,013.80
Step by Step Solution
- Step 1: Write the proportion equation
332,757.20 : 499,135.80 = 324,009.20 : x - Step 2: Convert to fraction form
332,757.20/499,135.80 = 324,009.20/x - Step 3: Cross multiply
332,757.20x = 499,135.80 × 324,009.20 - Step 4: Simplify right side
332,757.20x = 161,724,591,249.36 - Step 5: Solve for x
x = 161,724,591,249.36/332,757.20 - Step 6: Final answer
x = 486,013.80
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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.