Finding the Fourth Proportional to 221,343.23, 305,422.84 and 125,839.37
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Solution
The fourth proportional to 221,343.23, 305,422.84 and 125,839.37 is: 173,640.81
Step by Step Solution
- Step 1: Write the proportion equation
221,343.23 : 305,422.84 = 125,839.37 : x - Step 2: Convert to fraction form
221,343.23/305,422.84 = 125,839.37/x - Step 3: Cross multiply
221,343.23x = 305,422.84 × 125,839.37 - Step 4: Simplify right side
221,343.23x = 38,434,217,769.21 - Step 5: Solve for x
x = 38,434,217,769.21/221,343.23 - Step 6: Final answer
x = 173,640.81
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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.