Finding the Fourth Proportional to 354,846.12, 489,670.60 and 201,869.96
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Solution
The fourth proportional to 354,846.12, 489,670.60 and 201,869.96 is: 278,570.85
Step by Step Solution
- Step 1: Write the proportion equation
354,846.12 : 489,670.60 = 201,869.96 : x - Step 2: Convert to fraction form
354,846.12/489,670.60 = 201,869.96/x - Step 3: Cross multiply
354,846.12x = 489,670.60 × 201,869.96 - Step 4: Simplify right side
354,846.12x = 98,849,784,435.18 - Step 5: Solve for x
x = 98,849,784,435.18/354,846.12 - Step 6: Final answer
x = 278,570.85
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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.