Finding the Fourth Proportional to 354,779.36, 489,586.08 and 193,636.40
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Solution
The fourth proportional to 354,779.36, 489,586.08 and 193,636.40 is: 267,213.08
Step by Step Solution
- Step 1: Write the proportion equation
354,779.36 : 489,586.08 = 193,636.40 : x - Step 2: Convert to fraction form
354,779.36/489,586.08 = 193,636.40/x - Step 3: Cross multiply
354,779.36x = 489,586.08 × 193,636.40 - Step 4: Simplify right side
354,779.36x = 94,801,686,021.31 - Step 5: Solve for x
x = 94,801,686,021.31/354,779.36 - Step 6: Final answer
x = 267,213.08
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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.