Finding the Fourth Proportional to 216,342.81, 324,514.43 and 56,418.62
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Solution
The fourth proportional to 216,342.81, 324,514.43 and 56,418.62 is: 84,627.99
Step by Step Solution
- Step 1: Write the proportion equation
216,342.81 : 324,514.43 = 56,418.62 : x - Step 2: Convert to fraction form
216,342.81/324,514.43 = 56,418.62/x - Step 3: Cross multiply
216,342.81x = 324,514.43 × 56,418.62 - Step 4: Simplify right side
216,342.81x = 18,308,656,028.59 - Step 5: Solve for x
x = 18,308,656,028.59/216,342.81 - Step 6: Final answer
x = 84,627.99
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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.