Finding the Fourth Proportional to 354,486.96, 489,190.12 and 193,339.12
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Solution
The fourth proportional to 354,486.96, 489,190.12 and 193,339.12 is: 266,806.96
Step by Step Solution
- Step 1: Write the proportion equation
354,486.96 : 489,190.12 = 193,339.12 : x - Step 2: Convert to fraction form
354,486.96/489,190.12 = 193,339.12/x - Step 3: Cross multiply
354,486.96x = 489,190.12 × 193,339.12 - Step 4: Simplify right side
354,486.96x = 94,579,587,313.49 - Step 5: Solve for x
x = 94,579,587,313.49/354,486.96 - Step 6: Final answer
x = 266,806.96
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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.