Finding the Fourth Proportional to 217,947.69, 326,723.49 and 194,328.09
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Solution
The fourth proportional to 217,947.69, 326,723.49 and 194,328.09 is: 291,315.55
Step by Step Solution
- Step 1: Write the proportion equation
217,947.69 : 326,723.49 = 194,328.09 : x - Step 2: Convert to fraction form
217,947.69/326,723.49 = 194,328.09/x - Step 3: Cross multiply
217,947.69x = 326,723.49 × 194,328.09 - Step 4: Simplify right side
217,947.69x = 63,491,551,769.83 - Step 5: Solve for x
x = 63,491,551,769.83/217,947.69 - Step 6: Final answer
x = 291,315.55
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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.