Finding the Fourth Proportional to 208,814.42, 288,164.07 and 113,321.09
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Solution
The fourth proportional to 208,814.42, 288,164.07 and 113,321.09 is: 156,383.20
Step by Step Solution
- Step 1: Write the proportion equation
208,814.42 : 288,164.07 = 113,321.09 : x - Step 2: Convert to fraction form
208,814.42/288,164.07 = 113,321.09/x - Step 3: Cross multiply
208,814.42x = 288,164.07 × 113,321.09 - Step 4: Simplify right side
208,814.42x = 32,655,066,511.24 - Step 5: Solve for x
x = 32,655,066,511.24/208,814.42 - Step 6: Final answer
x = 156,383.20
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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.