Finding the Fourth Proportional to 354,722.99, 489,528.09 and 193,588.38
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Solution
The fourth proportional to 354,722.99, 489,528.09 and 193,588.38 is: 267,157.62
Step by Step Solution
- Step 1: Write the proportion equation
354,722.99 : 489,528.09 = 193,588.38 : x - Step 2: Convert to fraction form
354,722.99/489,528.09 = 193,588.38/x - Step 3: Cross multiply
354,722.99x = 489,528.09 × 193,588.38 - Step 4: Simplify right side
354,722.99x = 94,766,949,907.59 - Step 5: Solve for x
x = 94,766,949,907.59/354,722.99 - Step 6: Final answer
x = 267,157.62
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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.