Finding the Fourth Proportional to 221,503.24, 331,708.38 and 126,497.80
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Solution
The fourth proportional to 221,503.24, 331,708.38 and 126,497.80 is: 189,434.61
Step by Step Solution
- Step 1: Write the proportion equation
221,503.24 : 331,708.38 = 126,497.80 : x - Step 2: Convert to fraction form
221,503.24/331,708.38 = 126,497.80/x - Step 3: Cross multiply
221,503.24x = 331,708.38 × 126,497.80 - Step 4: Simplify right side
221,503.24x = 41,960,380,311.56 - Step 5: Solve for x
x = 41,960,380,311.56/221,503.24 - Step 6: Final answer
x = 189,434.61
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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.