Finding the Fourth Proportional to 354,937.20, 489,805.56 and 193,786.08
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Solution
The fourth proportional to 354,937.20, 489,805.56 and 193,786.08 is: 267,420.54
Step by Step Solution
- Step 1: Write the proportion equation
354,937.20 : 489,805.56 = 193,786.08 : x - Step 2: Convert to fraction form
354,937.20/489,805.56 = 193,786.08/x - Step 3: Cross multiply
354,937.20x = 489,805.56 × 193,786.08 - Step 4: Simplify right side
354,937.20x = 94,917,499,434.60 - Step 5: Solve for x
x = 94,917,499,434.60/354,937.20 - Step 6: Final answer
x = 267,420.54
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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.