Finding the Fourth Proportional to 393,257.44, 542,741.43 and 223,517.08
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Solution
The fourth proportional to 393,257.44, 542,741.43 and 223,517.08 is: 308,479.81
Step by Step Solution
- Step 1: Write the proportion equation
393,257.44 : 542,741.43 = 223,517.08 : x - Step 2: Convert to fraction form
393,257.44/542,741.43 = 223,517.08/x - Step 3: Cross multiply
393,257.44x = 542,741.43 × 223,517.08 - Step 4: Simplify right side
393,257.44x = 121,311,979,628.62 - Step 5: Solve for x
x = 121,311,979,628.62/393,257.44 - Step 6: Final answer
x = 308,479.81
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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.