Finding the Fourth Proportional to 312,190.63, 430,823.06 and 168,950.70
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Solution
The fourth proportional to 312,190.63, 430,823.06 and 168,950.70 is: 233,151.96
Step by Step Solution
- Step 1: Write the proportion equation
312,190.63 : 430,823.06 = 168,950.70 : x - Step 2: Convert to fraction form
312,190.63/430,823.06 = 168,950.70/x - Step 3: Cross multiply
312,190.63x = 430,823.06 × 168,950.70 - Step 4: Simplify right side
312,190.63x = 72,787,856,718.39 - Step 5: Solve for x
x = 72,787,856,718.39/312,190.63 - Step 6: Final answer
x = 233,151.96
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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.