Finding the Fourth Proportional to 354,593.12, 489,290.08 and 203,690.12
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Solution
The fourth proportional to 354,593.12, 489,290.08 and 203,690.12 is: 281,064.55
Step by Step Solution
- Step 1: Write the proportion equation
354,593.12 : 489,290.08 = 203,690.12 : x - Step 2: Convert to fraction form
354,593.12/489,290.08 = 203,690.12/x - Step 3: Cross multiply
354,593.12x = 489,290.08 × 203,690.12 - Step 4: Simplify right side
354,593.12x = 99,663,555,110.01 - Step 5: Solve for x
x = 99,663,555,110.01/354,593.12 - Step 6: Final answer
x = 281,064.55
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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.