Finding the Fourth Proportional to 354,893.28, 489,744.80 and 193,742.08
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Solution
The fourth proportional to 354,893.28, 489,744.80 and 193,742.08 is: 267,359.74
Step by Step Solution
- Step 1: Write the proportion equation
354,893.28 : 489,744.80 = 193,742.08 : x - Step 2: Convert to fraction form
354,893.28/489,744.80 = 193,742.08/x - Step 3: Cross multiply
354,893.28x = 489,744.80 × 193,742.08 - Step 4: Simplify right side
354,893.28x = 94,884,176,221.18 - Step 5: Solve for x
x = 94,884,176,221.18/354,893.28 - Step 6: Final answer
x = 267,359.74
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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.