Finding the Fourth Proportional to 438,988.26, 658,179.81 and 172,779.34
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Solution
The fourth proportional to 438,988.26, 658,179.81 and 172,779.34 is: 259,049.92
Step by Step Solution
- Step 1: Write the proportion equation
438,988.26 : 658,179.81 = 172,779.34 : x - Step 2: Convert to fraction form
438,988.26/658,179.81 = 172,779.34/x - Step 3: Cross multiply
438,988.26x = 658,179.81 × 172,779.34 - Step 4: Simplify right side
438,988.26x = 113,719,873,173.13 - Step 5: Solve for x
x = 113,719,873,173.13/438,988.26 - Step 6: Final answer
x = 259,049.92
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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.