Finding the Fourth Proportional to 281,728.74, 422,608.53 and 71,368.50
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Solution
The fourth proportional to 281,728.74, 422,608.53 and 71,368.50 is: 107,056.66
Step by Step Solution
- Step 1: Write the proportion equation
281,728.74 : 422,608.53 = 71,368.50 : x - Step 2: Convert to fraction form
281,728.74/422,608.53 = 71,368.50/x - Step 3: Cross multiply
281,728.74x = 422,608.53 × 71,368.50 - Step 4: Simplify right side
281,728.74x = 30,160,936,873.31 - Step 5: Solve for x
x = 30,160,936,873.31/281,728.74 - Step 6: Final answer
x = 107,056.66
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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.