Finding the Fourth Proportional to 221,107.40, 305,129.36 and 125,619.44
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Solution
The fourth proportional to 221,107.40, 305,129.36 and 125,619.44 is: 173,355.48
Step by Step Solution
- Step 1: Write the proportion equation
221,107.40 : 305,129.36 = 125,619.44 : x - Step 2: Convert to fraction form
221,107.40/305,129.36 = 125,619.44/x - Step 3: Cross multiply
221,107.40x = 305,129.36 × 125,619.44 - Step 4: Simplify right side
221,107.40x = 38,330,179,330.76 - Step 5: Solve for x
x = 38,330,179,330.76/221,107.40 - Step 6: Final answer
x = 173,355.48
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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.