Finding the Fourth Proportional to 274,891.29, 412,401.46 and 85,341.97
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Solution
The fourth proportional to 274,891.29, 412,401.46 and 85,341.97 is: 128,032.99
Step by Step Solution
- Step 1: Write the proportion equation
274,891.29 : 412,401.46 = 85,341.97 : x - Step 2: Convert to fraction form
274,891.29/412,401.46 = 85,341.97/x - Step 3: Cross multiply
274,891.29x = 412,401.46 × 85,341.97 - Step 4: Simplify right side
274,891.29x = 35,195,153,027.28 - Step 5: Solve for x
x = 35,195,153,027.28/274,891.29 - Step 6: Final answer
x = 128,032.99
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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.