Finding the Fourth Proportional to 354,949.21, 489,836.73 and 193,810.65
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Solution
The fourth proportional to 354,949.21, 489,836.73 and 193,810.65 is: 267,462.42
Step by Step Solution
- Step 1: Write the proportion equation
354,949.21 : 489,836.73 = 193,810.65 : x - Step 2: Convert to fraction form
354,949.21/489,836.73 = 193,810.65/x - Step 3: Cross multiply
354,949.21x = 489,836.73 × 193,810.65 - Step 4: Simplify right side
354,949.21x = 94,935,575,035.17 - Step 5: Solve for x
x = 94,935,575,035.17/354,949.21 - Step 6: Final answer
x = 267,462.42
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1.5x scale
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.