Finding the Fourth Proportional to 312,232.83, 430,891.75 and 191,350.76
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Solution
The fourth proportional to 312,232.83, 430,891.75 and 191,350.76 is: 264,070.45
Step by Step Solution
- Step 1: Write the proportion equation
312,232.83 : 430,891.75 = 191,350.76 : x - Step 2: Convert to fraction form
312,232.83/430,891.75 = 191,350.76/x - Step 3: Cross multiply
312,232.83x = 430,891.75 × 191,350.76 - Step 4: Simplify right side
312,232.83x = 82,451,463,840.23 - Step 5: Solve for x
x = 82,451,463,840.23/312,232.83 - Step 6: Final answer
x = 264,070.45
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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.