Finding the Fourth Proportional to 211,206.26, 291,231.14 and 134,604.12
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Solution
The fourth proportional to 211,206.26, 291,231.14 and 134,604.12 is: 185,604.87
Step by Step Solution
- Step 1: Write the proportion equation
211,206.26 : 291,231.14 = 134,604.12 : x - Step 2: Convert to fraction form
211,206.26/291,231.14 = 134,604.12/x - Step 3: Cross multiply
211,206.26x = 291,231.14 × 134,604.12 - Step 4: Simplify right side
211,206.26x = 39,200,911,316.30 - Step 5: Solve for x
x = 39,200,911,316.30/211,206.26 - Step 6: Final answer
x = 185,604.87
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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.