Finding the Fourth Proportional to 211,171.24, 316,453.74 and 126,965.80
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Solution
The fourth proportional to 211,171.24, 316,453.74 and 126,965.80 is: 190,266.45
Step by Step Solution
- Step 1: Write the proportion equation
211,171.24 : 316,453.74 = 126,965.80 : x - Step 2: Convert to fraction form
211,171.24/316,453.74 = 126,965.80/x - Step 3: Cross multiply
211,171.24x = 316,453.74 × 126,965.80 - Step 4: Simplify right side
211,171.24x = 40,178,802,262.09 - Step 5: Solve for x
x = 40,178,802,262.09/211,171.24 - Step 6: Final answer
x = 190,266.45
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1.5x scale
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.