Finding the Fourth Proportional to 289,880.20, 434,237.10 and 201,233.80
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Solution
The fourth proportional to 289,880.20, 434,237.10 and 201,233.80 is: 301,445.84
Step by Step Solution
- Step 1: Write the proportion equation
289,880.20 : 434,237.10 = 201,233.80 : x - Step 2: Convert to fraction form
289,880.20/434,237.10 = 201,233.80/x - Step 3: Cross multiply
289,880.20x = 434,237.10 × 201,233.80 - Step 4: Simplify right side
289,880.20x = 87,383,181,733.98 - Step 5: Solve for x
x = 87,383,181,733.98/289,880.20 - Step 6: Final answer
x = 301,445.84
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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.