Finding the Fourth Proportional to 354,370.80, 489,073.18 and 201,431.96
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Solution
The fourth proportional to 354,370.80, 489,073.18 and 201,431.96 is: 277,999.68
Step by Step Solution
- Step 1: Write the proportion equation
354,370.80 : 489,073.18 = 201,431.96 : x - Step 2: Convert to fraction form
354,370.80/489,073.18 = 201,431.96/x - Step 3: Cross multiply
354,370.80x = 489,073.18 × 201,431.96 - Step 4: Simplify right side
354,370.80x = 98,514,969,230.83 - Step 5: Solve for x
x = 98,514,969,230.83/354,370.80 - Step 6: Final answer
x = 277,999.68
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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.