Finding the Fourth Proportional to 312,197.30, 430,833.67 and 168,957.39
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Solution
The fourth proportional to 312,197.30, 430,833.67 and 168,957.39 is: 233,161.95
Step by Step Solution
- Step 1: Write the proportion equation
312,197.30 : 430,833.67 = 168,957.39 : x - Step 2: Convert to fraction form
312,197.30/430,833.67 = 168,957.39/x - Step 3: Cross multiply
312,197.30x = 430,833.67 × 168,957.39 - Step 4: Simplify right side
312,197.30x = 72,792,533,600.55 - Step 5: Solve for x
x = 72,792,533,600.55/312,197.30 - Step 6: Final answer
x = 233,161.95
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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.