Finding the Fourth Proportional to 345,878.70, 477,240.03 and 209,984.19
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Solution
The fourth proportional to 345,878.70, 477,240.03 and 209,984.19 is: 289,734.12
Step by Step Solution
- Step 1: Write the proportion equation
345,878.70 : 477,240.03 = 209,984.19 : x - Step 2: Convert to fraction form
345,878.70/477,240.03 = 209,984.19/x - Step 3: Cross multiply
345,878.70x = 477,240.03 × 209,984.19 - Step 4: Simplify right side
345,878.70x = 100,212,861,135.13 - Step 5: Solve for x
x = 100,212,861,135.13/345,878.70 - Step 6: Final answer
x = 289,734.12
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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.