Finding the Fourth Proportional to 321,645.24, 443,848.68 and 178,399.80
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Solution
The fourth proportional to 321,645.24, 443,848.68 and 178,399.80 is: 246,179.66
Step by Step Solution
- Step 1: Write the proportion equation
321,645.24 : 443,848.68 = 178,399.80 : x - Step 2: Convert to fraction form
321,645.24/443,848.68 = 178,399.80/x - Step 3: Cross multiply
321,645.24x = 443,848.68 × 178,399.80 - Step 4: Simplify right side
321,645.24x = 79,182,515,742.26 - Step 5: Solve for x
x = 79,182,515,742.26/321,645.24 - Step 6: Final answer
x = 246,179.66
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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.