Finding the Fourth Proportional to 385,576.26, 532,101.81 and 211,161.79
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Solution
The fourth proportional to 385,576.26, 532,101.81 and 211,161.79 is: 291,406.87
Step by Step Solution
- Step 1: Write the proportion equation
385,576.26 : 532,101.81 = 211,161.79 : x - Step 2: Convert to fraction form
385,576.26/532,101.81 = 211,161.79/x - Step 3: Cross multiply
385,576.26x = 532,101.81 × 211,161.79 - Step 4: Simplify right side
385,576.26x = 112,359,570,661.84 - Step 5: Solve for x
x = 112,359,570,661.84/385,576.26 - Step 6: Final answer
x = 291,406.87
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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.