Finding the Fourth Proportional to 312,184.14, 430,814.06 and 168,944.18
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Solution
The fourth proportional to 312,184.14, 430,814.06 and 168,944.18 is: 233,142.94
Step by Step Solution
- Step 1: Write the proportion equation
312,184.14 : 430,814.06 = 168,944.18 : x - Step 2: Convert to fraction form
312,184.14/430,814.06 = 168,944.18/x - Step 3: Cross multiply
312,184.14x = 430,814.06 × 168,944.18 - Step 4: Simplify right side
312,184.14x = 72,783,528,099.17 - Step 5: Solve for x
x = 72,783,528,099.17/312,184.14 - Step 6: Final answer
x = 233,142.94
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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.