Finding the Fourth Proportional to 354,974.05, 489,864.80 and 193,825.66
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Solution
The fourth proportional to 354,974.05, 489,864.80 and 193,825.66 is: 267,479.75
Step by Step Solution
- Step 1: Write the proportion equation
354,974.05 : 489,864.80 = 193,825.66 : x - Step 2: Convert to fraction form
354,974.05/489,864.80 = 193,825.66/x - Step 3: Cross multiply
354,974.05x = 489,864.80 × 193,825.66 - Step 4: Simplify right side
354,974.05x = 94,948,368,076.60 - Step 5: Solve for x
x = 94,948,368,076.60/354,974.05 - Step 6: Final answer
x = 267,479.75
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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.