Finding the Fourth Proportional to 289,553.80, 434,330.70 and 248,081.80
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Solution
The fourth proportional to 289,553.80, 434,330.70 and 248,081.80 is: 372,122.70
Step by Step Solution
- Step 1: Write the proportion equation
289,553.80 : 434,330.70 = 248,081.80 : x - Step 2: Convert to fraction form
289,553.80/434,330.70 = 248,081.80/x - Step 3: Cross multiply
289,553.80x = 434,330.70 × 248,081.80 - Step 4: Simplify right side
289,553.80x = 107,749,541,851.26 - Step 5: Solve for x
x = 107,749,541,851.26/289,553.80 - Step 6: Final answer
x = 372,122.70
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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.