Finding the Fourth Proportional to 213,847.75, 295,109.90 and 124,423.75
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Solution
The fourth proportional to 213,847.75, 295,109.90 and 124,423.75 is: 171,704.78
Step by Step Solution
- Step 1: Write the proportion equation
213,847.75 : 295,109.90 = 124,423.75 : x - Step 2: Convert to fraction form
213,847.75/295,109.90 = 124,423.75/x - Step 3: Cross multiply
213,847.75x = 295,109.90 × 124,423.75 - Step 4: Simplify right side
213,847.75x = 36,718,680,420.13 - Step 5: Solve for x
x = 36,718,680,420.13/213,847.75 - Step 6: Final answer
x = 171,704.78
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.