Finding the Fourth Proportional to 231,812.28, 347,718.42 and 126,573.84
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Solution
The fourth proportional to 231,812.28, 347,718.42 and 126,573.84 is: 189,860.76
Step by Step Solution
- Step 1: Write the proportion equation
231,812.28 : 347,718.42 = 126,573.84 : x - Step 2: Convert to fraction form
231,812.28/347,718.42 = 126,573.84/x - Step 3: Cross multiply
231,812.28x = 347,718.42 × 126,573.84 - Step 4: Simplify right side
231,812.28x = 44,012,055,658.13 - Step 5: Solve for x
x = 44,012,055,658.13/231,812.28 - Step 6: Final answer
x = 189,860.76
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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.