Finding the Fourth Proportional to 324,120.86, 486,177.38 and 84,213.53
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Solution
The fourth proportional to 324,120.86, 486,177.38 and 84,213.53 is: 126,319.28
Step by Step Solution
- Step 1: Write the proportion equation
324,120.86 : 486,177.38 = 84,213.53 : x - Step 2: Convert to fraction form
324,120.86/486,177.38 = 84,213.53/x - Step 3: Cross multiply
324,120.86x = 486,177.38 × 84,213.53 - Step 4: Simplify right side
324,120.86x = 40,942,713,375.95 - Step 5: Solve for x
x = 40,942,713,375.95/324,120.86 - Step 6: Final answer
x = 126,319.28
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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.