Finding the Fourth Proportional to 211,786.10, 317,679.26 and 132,955.68
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Solution
The fourth proportional to 211,786.10, 317,679.26 and 132,955.68 is: 199,433.59
Step by Step Solution
- Step 1: Write the proportion equation
211,786.10 : 317,679.26 = 132,955.68 : x - Step 2: Convert to fraction form
211,786.10/317,679.26 = 132,955.68/x - Step 3: Cross multiply
211,786.10x = 317,679.26 × 132,955.68 - Step 4: Simplify right side
211,786.10x = 42,237,261,370.42 - Step 5: Solve for x
x = 42,237,261,370.42/211,786.10 - Step 6: Final answer
x = 199,433.59
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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.