Finding the Fourth Proportional to 311,864.96, 430,373.36 and 168,624.69
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Solution
The fourth proportional to 311,864.96, 430,373.36 and 168,624.69 is: 232,701.92
Step by Step Solution
- Step 1: Write the proportion equation
311,864.96 : 430,373.36 = 168,624.69 : x - Step 2: Convert to fraction form
311,864.96/430,373.36 = 168,624.69/x - Step 3: Cross multiply
311,864.96x = 430,373.36 × 168,624.69 - Step 4: Simplify right side
311,864.96x = 72,571,573,571.14 - Step 5: Solve for x
x = 72,571,573,571.14/311,864.96 - Step 6: Final answer
x = 232,701.92
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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.