Finding the Fourth Proportional to 312,121.20, 467,525.70 and 259,633.20
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Solution
The fourth proportional to 312,121.20, 467,525.70 and 259,633.20 is: 388,904.03
Step by Step Solution
- Step 1: Write the proportion equation
312,121.20 : 467,525.70 = 259,633.20 : x - Step 2: Convert to fraction form
312,121.20/467,525.70 = 259,633.20/x - Step 3: Cross multiply
312,121.20x = 467,525.70 × 259,633.20 - Step 4: Simplify right side
312,121.20x = 121,385,193,573.24 - Step 5: Solve for x
x = 121,385,193,573.24/312,121.20 - Step 6: Final answer
x = 388,904.03
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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.