Finding the Fourth Proportional to 301,589.09, 416,199.92 and 172,539.68
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Solution
The fourth proportional to 301,589.09, 416,199.92 and 172,539.68 is: 238,108.75
Step by Step Solution
- Step 1: Write the proportion equation
301,589.09 : 416,199.92 = 172,539.68 : x - Step 2: Convert to fraction form
301,589.09/416,199.92 = 172,539.68/x - Step 3: Cross multiply
301,589.09x = 416,199.92 × 172,539.68 - Step 4: Simplify right side
301,589.09x = 71,811,001,012.83 - Step 5: Solve for x
x = 71,811,001,012.83/301,589.09 - Step 6: Final answer
x = 238,108.75
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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.