Finding the Fourth Proportional to 354,846.86, 489,671.43 and 201,870.62
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Solution
The fourth proportional to 354,846.86, 489,671.43 and 201,870.62 is: 278,571.65
Step by Step Solution
- Step 1: Write the proportion equation
354,846.86 : 489,671.43 = 201,870.62 : x - Step 2: Convert to fraction form
354,846.86/489,671.43 = 201,870.62/x - Step 3: Cross multiply
354,846.86x = 489,671.43 × 201,870.62 - Step 4: Simplify right side
354,846.86x = 98,850,275,170.39 - Step 5: Solve for x
x = 98,850,275,170.39/354,846.86 - Step 6: Final answer
x = 278,571.65
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1.5x scale
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.