Finding the Fourth Proportional to 311,805.12, 467,489.96 and 159,706.79
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Solution
The fourth proportional to 311,805.12, 467,489.96 and 159,706.79 is: 239,448.66
Step by Step Solution
- Step 1: Write the proportion equation
311,805.12 : 467,489.96 = 159,706.79 : x - Step 2: Convert to fraction form
311,805.12/467,489.96 = 159,706.79/x - Step 3: Cross multiply
311,805.12x = 467,489.96 × 159,706.79 - Step 4: Simplify right side
311,805.12x = 74,661,318,661.81 - Step 5: Solve for x
x = 74,661,318,661.81/311,805.12 - Step 6: Final answer
x = 239,448.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.