Finding the Fourth Proportional to 211,199.38, 291,455.14 and 126,336.49
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Solution
The fourth proportional to 211,199.38, 291,455.14 and 126,336.49 is: 174,344.35
Step by Step Solution
- Step 1: Write the proportion equation
211,199.38 : 291,455.14 = 126,336.49 : x - Step 2: Convert to fraction form
211,199.38/291,455.14 = 126,336.49/x - Step 3: Cross multiply
211,199.38x = 291,455.14 × 126,336.49 - Step 4: Simplify right side
211,199.38x = 36,821,419,380.06 - Step 5: Solve for x
x = 36,821,419,380.06/211,199.38 - Step 6: Final answer
x = 174,344.35
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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.