Finding the Fourth Proportional to 321,129.36, 481,992.93 and 163,475.82
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Solution
The fourth proportional to 321,129.36, 481,992.93 and 163,475.82 is: 245,365.88
Step by Step Solution
- Step 1: Write the proportion equation
321,129.36 : 481,992.93 = 163,475.82 : x - Step 2: Convert to fraction form
321,129.36/481,992.93 = 163,475.82/x - Step 3: Cross multiply
321,129.36x = 481,992.93 × 163,475.82 - Step 4: Simplify right side
321,129.36x = 78,794,189,465.95 - Step 5: Solve for x
x = 78,794,189,465.95/321,129.36 - Step 6: Final answer
x = 245,365.88
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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.