Finding the Fourth Proportional to 208,736.41, 288,056.35 and 113,243.08
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Solution
The fourth proportional to 208,736.41, 288,056.35 and 113,243.08 is: 156,275.51
Step by Step Solution
- Step 1: Write the proportion equation
208,736.41 : 288,056.35 = 113,243.08 : x - Step 2: Convert to fraction form
208,736.41/288,056.35 = 113,243.08/x - Step 3: Cross multiply
208,736.41x = 288,056.35 × 113,243.08 - Step 4: Simplify right side
208,736.41x = 32,620,388,287.56 - Step 5: Solve for x
x = 32,620,388,287.56/208,736.41 - Step 6: Final answer
x = 156,275.51
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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.