Finding the Fourth Proportional to 453,837.20, 680,755.80 and 121,413.20
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Solution
The fourth proportional to 453,837.20, 680,755.80 and 121,413.20 is: 182,119.80
Step by Step Solution
- Step 1: Write the proportion equation
453,837.20 : 680,755.80 = 121,413.20 : x - Step 2: Convert to fraction form
453,837.20/680,755.80 = 121,413.20/x - Step 3: Cross multiply
453,837.20x = 680,755.80 × 121,413.20 - Step 4: Simplify right side
453,837.20x = 82,652,740,096.56 - Step 5: Solve for x
x = 82,652,740,096.56/453,837.20 - Step 6: Final answer
x = 182,119.80
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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.