Finding the Fourth Proportional to 203,310.05, 280,575.09 and 122,721.83
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Solution
The fourth proportional to 203,310.05, 280,575.09 and 122,721.83 is: 169,360.49
Step by Step Solution
- Step 1: Write the proportion equation
203,310.05 : 280,575.09 = 122,721.83 : x - Step 2: Convert to fraction form
203,310.05/280,575.09 = 122,721.83/x - Step 3: Cross multiply
203,310.05x = 280,575.09 × 122,721.83 - Step 4: Simplify right side
203,310.05x = 34,432,689,724.73 - Step 5: Solve for x
x = 34,432,689,724.73/203,310.05 - Step 6: Final answer
x = 169,360.49
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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.