Finding the Fourth Proportional to 354,725.13, 489,531.49 and 201,785.49
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Solution
The fourth proportional to 354,725.13, 489,531.49 and 201,785.49 is: 278,470.13
Step by Step Solution
- Step 1: Write the proportion equation
354,725.13 : 489,531.49 = 201,785.49 : x - Step 2: Convert to fraction form
354,725.13/489,531.49 = 201,785.49/x - Step 3: Cross multiply
354,725.13x = 489,531.49 × 201,785.49 - Step 4: Simplify right side
354,725.13x = 98,780,351,580.08 - Step 5: Solve for x
x = 98,780,351,580.08/354,725.13 - Step 6: Final answer
x = 278,470.13
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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.