Finding the Fourth Proportional to 209,213.70, 313,820.55 and 125,232.90
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Solution
The fourth proportional to 209,213.70, 313,820.55 and 125,232.90 is: 187,849.35
Step by Step Solution
- Step 1: Write the proportion equation
209,213.70 : 313,820.55 = 125,232.90 : x - Step 2: Convert to fraction form
209,213.70/313,820.55 = 125,232.90/x - Step 3: Cross multiply
209,213.70x = 313,820.55 × 125,232.90 - Step 4: Simplify right side
209,213.70x = 39,300,657,556.10 - Step 5: Solve for x
x = 39,300,657,556.10/209,213.70 - Step 6: Final answer
x = 187,849.35
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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.