Finding the Fourth Proportional to 354,613.44, 489,355.92 and 193,471.68
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Solution
The fourth proportional to 354,613.44, 489,355.92 and 193,471.68 is: 266,985.12
Step by Step Solution
- Step 1: Write the proportion equation
354,613.44 : 489,355.92 = 193,471.68 : x - Step 2: Convert to fraction form
354,613.44/489,355.92 = 193,471.68/x - Step 3: Cross multiply
354,613.44x = 489,355.92 × 193,471.68 - Step 4: Simplify right side
354,613.44x = 94,676,511,960.35 - Step 5: Solve for x
x = 94,676,511,960.35/354,613.44 - Step 6: Final answer
x = 266,985.12
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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.