Finding the Fourth Proportional to 215,649.14, 323,617.68 and 75,407.76
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Solution
The fourth proportional to 215,649.14, 323,617.68 and 75,407.76 is: 113,161.99
Step by Step Solution
- Step 1: Write the proportion equation
215,649.14 : 323,617.68 = 75,407.76 : x - Step 2: Convert to fraction form
215,649.14/323,617.68 = 75,407.76/x - Step 3: Cross multiply
215,649.14x = 323,617.68 × 75,407.76 - Step 4: Simplify right side
215,649.14x = 24,403,284,345.20 - Step 5: Solve for x
x = 24,403,284,345.20/215,649.14 - Step 6: Final answer
x = 113,161.99
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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.