Finding the Fourth Proportional to 312,197.93, 430,833.13 and 168,957.97
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Solution
The fourth proportional to 312,197.93, 430,833.13 and 168,957.97 is: 233,161.99
Step by Step Solution
- Step 1: Write the proportion equation
312,197.93 : 430,833.13 = 168,957.97 : x - Step 2: Convert to fraction form
312,197.93/430,833.13 = 168,957.97/x - Step 3: Cross multiply
312,197.93x = 430,833.13 × 168,957.97 - Step 4: Simplify right side
312,197.93x = 72,792,691,053.55 - Step 5: Solve for x
x = 72,792,691,053.55/312,197.93 - Step 6: Final answer
x = 233,161.99
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1.5x scale
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.