Finding the Fourth Proportional to 221,102.75, 305,122.82 and 125,614.68
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Solution
The fourth proportional to 221,102.75, 305,122.82 and 125,614.68 is: 173,348.84
Step by Step Solution
- Step 1: Write the proportion equation
221,102.75 : 305,122.82 = 125,614.68 : x - Step 2: Convert to fraction form
221,102.75/305,122.82 = 125,614.68/x - Step 3: Cross multiply
221,102.75x = 305,122.82 × 125,614.68 - Step 4: Simplify right side
221,102.75x = 38,327,904,766.92 - Step 5: Solve for x
x = 38,327,904,766.92/221,102.75 - Step 6: Final answer
x = 173,348.84
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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.