Finding the Fourth Proportional to 312,183.02, 430,766.24 and 189,611.66
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Solution
The fourth proportional to 312,183.02, 430,766.24 and 189,611.66 is: 261,635.95
Step by Step Solution
- Step 1: Write the proportion equation
312,183.02 : 430,766.24 = 189,611.66 : x - Step 2: Convert to fraction form
312,183.02/430,766.24 = 189,611.66/x - Step 3: Cross multiply
312,183.02x = 430,766.24 × 189,611.66 - Step 4: Simplify right side
312,183.02x = 81,678,298,736.47 - Step 5: Solve for x
x = 81,678,298,736.47/312,183.02 - Step 6: Final answer
x = 261,635.95
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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.