Finding the Fourth Proportional to 263,508.17, 363,640.86 and 142,649.43
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Solution
The fourth proportional to 263,508.17, 363,640.86 and 142,649.43 is: 196,855.99
Step by Step Solution
- Step 1: Write the proportion equation
263,508.17 : 363,640.86 = 142,649.43 : x - Step 2: Convert to fraction form
263,508.17/363,640.86 = 142,649.43/x - Step 3: Cross multiply
263,508.17x = 363,640.86 × 142,649.43 - Step 4: Simplify right side
263,508.17x = 51,873,161,403.71 - Step 5: Solve for x
x = 51,873,161,403.71/263,508.17 - Step 6: Final answer
x = 196,855.99
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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.