Finding the Fourth Proportional to 327,649.10, 491,507.15 and 125,415.09
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Solution
The fourth proportional to 327,649.10, 491,507.15 and 125,415.09 is: 188,135.46
Step by Step Solution
- Step 1: Write the proportion equation
327,649.10 : 491,507.15 = 125,415.09 : x - Step 2: Convert to fraction form
327,649.10/491,507.15 = 125,415.09/x - Step 3: Cross multiply
327,649.10x = 491,507.15 × 125,415.09 - Step 4: Simplify right side
327,649.10x = 61,642,412,825.82 - Step 5: Solve for x
x = 61,642,412,825.82/327,649.10 - Step 6: Final answer
x = 188,135.46
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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.