Finding the Fourth Proportional to 264,174.49, 396,278.21 and 74,649.38
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Solution
The fourth proportional to 264,174.49, 396,278.21 and 74,649.38 is: 111,978.72
Step by Step Solution
- Step 1: Write the proportion equation
264,174.49 : 396,278.21 = 74,649.38 : x - Step 2: Convert to fraction form
264,174.49/396,278.21 = 74,649.38/x - Step 3: Cross multiply
264,174.49x = 396,278.21 × 74,649.38 - Step 4: Simplify right side
264,174.49x = 29,581,920,889.24 - Step 5: Solve for x
x = 29,581,920,889.24/264,174.49 - Step 6: Final answer
x = 111,978.72
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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.