Finding the Fourth Proportional to 354,741.09, 489,554.16 and 201,775.35
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Solution
The fourth proportional to 354,741.09, 489,554.16 and 201,775.35 is: 278,456.50
Step by Step Solution
- Step 1: Write the proportion equation
354,741.09 : 489,554.16 = 201,775.35 : x - Step 2: Convert to fraction form
354,741.09/489,554.16 = 201,775.35/x - Step 3: Cross multiply
354,741.09x = 489,554.16 × 201,775.35 - Step 4: Simplify right side
354,741.09x = 98,779,961,977.96 - Step 5: Solve for x
x = 98,779,961,977.96/354,741.09 - Step 6: Final answer
x = 278,456.50
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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.