Finding the Fourth Proportional to 221,905.93, 332,826.09 and 81,631.75
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Solution
The fourth proportional to 221,905.93, 332,826.09 and 81,631.75 is: 122,435.56
Step by Step Solution
- Step 1: Write the proportion equation
221,905.93 : 332,826.09 = 81,631.75 : x - Step 2: Convert to fraction form
221,905.93/332,826.09 = 81,631.75/x - Step 3: Cross multiply
221,905.93x = 332,826.09 × 81,631.75 - Step 4: Simplify right side
221,905.93x = 27,169,176,172.36 - Step 5: Solve for x
x = 27,169,176,172.36/221,905.93 - Step 6: Final answer
x = 122,435.56
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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.