Finding the Fourth Proportional to 354,914.15, 489,779.03 and 193,769.19
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Solution
The fourth proportional to 354,914.15, 489,779.03 and 193,769.19 is: 267,400.12
Step by Step Solution
- Step 1: Write the proportion equation
354,914.15 : 489,779.03 = 193,769.19 : x - Step 2: Convert to fraction form
354,914.15/489,779.03 = 193,769.19/x - Step 3: Cross multiply
354,914.15x = 489,779.03 × 193,769.19 - Step 4: Simplify right side
354,914.15x = 94,904,084,953.24 - Step 5: Solve for x
x = 94,904,084,953.24/354,914.15 - Step 6: Final answer
x = 267,400.12
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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.