Finding the Fourth Proportional to 312,197.76, 430,832.88 and 168,957.83
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Solution
The fourth proportional to 312,197.76, 430,832.88 and 168,957.83 is: 233,161.79
Step by Step Solution
- Step 1: Write the proportion equation
312,197.76 : 430,832.88 = 168,957.83 : x - Step 2: Convert to fraction form
312,197.76/430,832.88 = 168,957.83/x - Step 3: Cross multiply
312,197.76x = 430,832.88 × 168,957.83 - Step 4: Simplify right side
312,197.76x = 72,792,589,574.53 - Step 5: Solve for x
x = 72,792,589,574.53/312,197.76 - Step 6: Final answer
x = 233,161.79
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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.