Finding the Fourth Proportional to 354,742.92, 489,556.60 and 201,777.16
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Solution
The fourth proportional to 354,742.92, 489,556.60 and 201,777.16 is: 278,458.95
Step by Step Solution
- Step 1: Write the proportion equation
354,742.92 : 489,556.60 = 201,777.16 : x - Step 2: Convert to fraction form
354,742.92/489,556.60 = 201,777.16/x - Step 3: Cross multiply
354,742.92x = 489,556.60 × 201,777.16 - Step 4: Simplify right side
354,742.92x = 98,781,340,407.26 - Step 5: Solve for x
x = 98,781,340,407.26/354,742.92 - Step 6: Final answer
x = 278,458.95
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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.