Finding the Fourth Proportional to 354,454.09, 489,175.76 and 201,540.26
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Solution
The fourth proportional to 354,454.09, 489,175.76 and 201,540.26 is: 278,142.11
Step by Step Solution
- Step 1: Write the proportion equation
354,454.09 : 489,175.76 = 201,540.26 : x - Step 2: Convert to fraction form
354,454.09/489,175.76 = 201,540.26/x - Step 3: Cross multiply
354,454.09x = 489,175.76 × 201,540.26 - Step 4: Simplify right side
354,454.09x = 98,588,608,848.40 - Step 5: Solve for x
x = 98,588,608,848.40/354,454.09 - Step 6: Final answer
x = 278,142.11
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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.