Finding the Fourth Proportional to 354,445.12, 489,115.03 and 201,462.08
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Solution
The fourth proportional to 354,445.12, 489,115.03 and 201,462.08 is: 278,006.73
Step by Step Solution
- Step 1: Write the proportion equation
354,445.12 : 489,115.03 = 201,462.08 : x - Step 2: Convert to fraction form
354,445.12/489,115.03 = 201,462.08/x - Step 3: Cross multiply
354,445.12x = 489,115.03 × 201,462.08 - Step 4: Simplify right side
354,445.12x = 98,538,129,540.60 - Step 5: Solve for x
x = 98,538,129,540.60/354,445.12 - Step 6: Final answer
x = 278,006.73
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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.