Finding the Fourth Proportional to 354,723.08, 489,601.62 and 203,907.56
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Solution
The fourth proportional to 354,723.08, 489,601.62 and 203,907.56 is: 281,440.59
Step by Step Solution
- Step 1: Write the proportion equation
354,723.08 : 489,601.62 = 203,907.56 : x - Step 2: Convert to fraction form
354,723.08/489,601.62 = 203,907.56/x - Step 3: Cross multiply
354,723.08x = 489,601.62 × 203,907.56 - Step 4: Simplify right side
354,723.08x = 99,833,471,706.25 - Step 5: Solve for x
x = 99,833,471,706.25/354,723.08 - Step 6: Final answer
x = 281,440.59
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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.