Finding the Fourth Proportional to 354,687.96, 489,456.30 and 193,539.55
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Solution
The fourth proportional to 354,687.96, 489,456.30 and 193,539.55 is: 267,077.44
Step by Step Solution
- Step 1: Write the proportion equation
354,687.96 : 489,456.30 = 193,539.55 : x - Step 2: Convert to fraction form
354,687.96/489,456.30 = 193,539.55/x - Step 3: Cross multiply
354,687.96x = 489,456.30 × 193,539.55 - Step 4: Simplify right side
354,687.96x = 94,729,152,210.13 - Step 5: Solve for x
x = 94,729,152,210.13/354,687.96 - Step 6: Final answer
x = 267,077.44
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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.