Finding the Fourth Proportional to 261,921.18, 393,077.34 and 177,481.08
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Solution
The fourth proportional to 261,921.18, 393,077.34 and 177,481.08 is: 266,354.14
Step by Step Solution
- Step 1: Write the proportion equation
261,921.18 : 393,077.34 = 177,481.08 : x - Step 2: Convert to fraction form
261,921.18/393,077.34 = 177,481.08/x - Step 3: Cross multiply
261,921.18x = 393,077.34 × 177,481.08 - Step 4: Simplify right side
261,921.18x = 69,763,790,826.73 - Step 5: Solve for x
x = 69,763,790,826.73/261,921.18 - Step 6: Final answer
x = 266,354.14
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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.