Finding the Fourth Proportional to 312,122.20, 467,527.20 and 259,634.20
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Solution
The fourth proportional to 312,122.20, 467,527.20 and 259,634.20 is: 388,905.53
Step by Step Solution
- Step 1: Write the proportion equation
312,122.20 : 467,527.20 = 259,634.20 : x - Step 2: Convert to fraction form
312,122.20/467,527.20 = 259,634.20/x - Step 3: Cross multiply
312,122.20x = 467,527.20 × 259,634.20 - Step 4: Simplify right side
312,122.20x = 121,386,050,550.24 - Step 5: Solve for x
x = 121,386,050,550.24/312,122.20 - Step 6: Final answer
x = 388,905.53
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1.5x scale
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.