Finding the Fourth Proportional to 438,995.14, 658,040.73 and 172,647.70
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Solution
The fourth proportional to 438,995.14, 658,040.73 and 172,647.70 is: 258,793.80
Step by Step Solution
- Step 1: Write the proportion equation
438,995.14 : 658,040.73 = 172,647.70 : x - Step 2: Convert to fraction form
438,995.14/658,040.73 = 172,647.70/x - Step 3: Cross multiply
438,995.14x = 658,040.73 × 172,647.70 - Step 4: Simplify right side
438,995.14x = 113,609,218,540.82 - Step 5: Solve for x
x = 113,609,218,540.82/438,995.14 - Step 6: Final answer
x = 258,793.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.