Finding the Fourth Proportional to 268,945.80, 403,418.70 and 121,489.80
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Solution
The fourth proportional to 268,945.80, 403,418.70 and 121,489.80 is: 182,234.70
Step by Step Solution
- Step 1: Write the proportion equation
268,945.80 : 403,418.70 = 121,489.80 : x - Step 2: Convert to fraction form
268,945.80/403,418.70 = 121,489.80/x - Step 3: Cross multiply
268,945.80x = 403,418.70 × 121,489.80 - Step 4: Simplify right side
268,945.80x = 49,011,257,179.26 - Step 5: Solve for x
x = 49,011,257,179.26/268,945.80 - Step 6: Final answer
x = 182,234.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.