Finding the Fourth Proportional to 208,576.69, 287,818.11 and 117,920.08
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Solution
The fourth proportional to 208,576.69, 287,818.11 and 117,920.08 is: 162,719.69
Step by Step Solution
- Step 1: Write the proportion equation
208,576.69 : 287,818.11 = 117,920.08 : x - Step 2: Convert to fraction form
208,576.69/287,818.11 = 117,920.08/x - Step 3: Cross multiply
208,576.69x = 287,818.11 × 117,920.08 - Step 4: Simplify right side
208,576.69x = 33,939,534,556.65 - Step 5: Solve for x
x = 33,939,534,556.65/208,576.69 - Step 6: Final answer
x = 162,719.69
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1.5x scale
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.