Finding the Fourth Proportional to 236,648.85, 326,576.61 and 129,218.88
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Solution
The fourth proportional to 236,648.85, 326,576.61 and 129,218.88 is: 178,322.70
Step by Step Solution
- Step 1: Write the proportion equation
236,648.85 : 326,576.61 = 129,218.88 : x - Step 2: Convert to fraction form
236,648.85/326,576.61 = 129,218.88/x - Step 3: Cross multiply
236,648.85x = 326,576.61 × 129,218.88 - Step 4: Simplify right side
236,648.85x = 42,199,861,499.42 - Step 5: Solve for x
x = 42,199,861,499.42/236,648.85 - Step 6: Final answer
x = 178,322.70
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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.