Finding the Fourth Proportional to 354,825.05, 489,670.16 and 193,688.70
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Solution
The fourth proportional to 354,825.05, 489,670.16 and 193,688.70 is: 267,296.73
Step by Step Solution
- Step 1: Write the proportion equation
354,825.05 : 489,670.16 = 193,688.70 : x - Step 2: Convert to fraction form
354,825.05/489,670.16 = 193,688.70/x - Step 3: Cross multiply
354,825.05x = 489,670.16 × 193,688.70 - Step 4: Simplify right side
354,825.05x = 94,843,575,750.75 - Step 5: Solve for x
x = 94,843,575,750.75/354,825.05 - Step 6: Final answer
x = 267,296.73
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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.