Finding the Fourth Proportional to 221,905.44, 332,825.34 and 81,631.26
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Solution
The fourth proportional to 221,905.44, 332,825.34 and 81,631.26 is: 122,434.82
Step by Step Solution
- Step 1: Write the proportion equation
221,905.44 : 332,825.34 = 81,631.26 : x - Step 2: Convert to fraction form
221,905.44/332,825.34 = 81,631.26/x - Step 3: Cross multiply
221,905.44x = 332,825.34 × 81,631.26 - Step 4: Simplify right side
221,905.44x = 27,168,951,864.13 - Step 5: Solve for x
x = 27,168,951,864.13/221,905.44 - Step 6: Final answer
x = 122,434.82
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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.