Finding the Fourth Proportional to 305,734.84, 458,454.11 and 128,194.18
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Solution
The fourth proportional to 305,734.84, 458,454.11 and 128,194.18 is: 192,229.15
Step by Step Solution
- Step 1: Write the proportion equation
305,734.84 : 458,454.11 = 128,194.18 : x - Step 2: Convert to fraction form
305,734.84/458,454.11 = 128,194.18/x - Step 3: Cross multiply
305,734.84x = 458,454.11 × 128,194.18 - Step 4: Simplify right side
305,734.84x = 58,771,146,911.97 - Step 5: Solve for x
x = 58,771,146,911.97/305,734.84 - Step 6: Final answer
x = 192,229.15
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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.