Finding the Fourth Proportional to 211,605.26, 291,993.99 and 126,720.14
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Solution
The fourth proportional to 211,605.26, 291,993.99 and 126,720.14 is: 174,861.06
Step by Step Solution
- Step 1: Write the proportion equation
211,605.26 : 291,993.99 = 126,720.14 : x - Step 2: Convert to fraction form
211,605.26/291,993.99 = 126,720.14/x - Step 3: Cross multiply
211,605.26x = 291,993.99 × 126,720.14 - Step 4: Simplify right side
211,605.26x = 37,001,519,291.96 - Step 5: Solve for x
x = 37,001,519,291.96/211,605.26 - Step 6: Final answer
x = 174,861.06
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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.