Finding the Fourth Proportional to 221,529.24, 305,713.56 and 126,033.88
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Solution
The fourth proportional to 221,529.24, 305,713.56 and 126,033.88 is: 173,928.58
Step by Step Solution
- Step 1: Write the proportion equation
221,529.24 : 305,713.56 = 126,033.88 : x - Step 2: Convert to fraction form
221,529.24/305,713.56 = 126,033.88/x - Step 3: Cross multiply
221,529.24x = 305,713.56 × 126,033.88 - Step 4: Simplify right side
221,529.24x = 38,530,266,135.41 - Step 5: Solve for x
x = 38,530,266,135.41/221,529.24 - Step 6: Final answer
x = 173,928.58
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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.