Finding the Fourth Proportional to 179,610.13, 247,731.69 and 122,147.31
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Solution
The fourth proportional to 179,610.13, 247,731.69 and 122,147.31 is: 168,474.68
Step by Step Solution
- Step 1: Write the proportion equation
179,610.13 : 247,731.69 = 122,147.31 : x - Step 2: Convert to fraction form
179,610.13/247,731.69 = 122,147.31/x - Step 3: Cross multiply
179,610.13x = 247,731.69 × 122,147.31 - Step 4: Simplify right side
179,610.13x = 30,259,759,535.25 - Step 5: Solve for x
x = 30,259,759,535.25/179,610.13 - Step 6: Final answer
x = 168,474.68
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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.