Finding the Fourth Proportional to 354,723.75, 489,529.10 and 193,589.18
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Solution
The fourth proportional to 354,723.75, 489,529.10 and 193,589.18 is: 267,158.70
Step by Step Solution
- Step 1: Write the proportion equation
354,723.75 : 489,529.10 = 193,589.18 : x - Step 2: Convert to fraction form
354,723.75/489,529.10 = 193,589.18/x - Step 3: Cross multiply
354,723.75x = 489,529.10 × 193,589.18 - Step 4: Simplify right side
354,723.75x = 94,767,537,311.01 - Step 5: Solve for x
x = 94,767,537,311.01/354,723.75 - Step 6: Final answer
x = 267,158.70
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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.