Finding the Fourth Proportional to 216,649.12, 324,853.62 and 88,655.32
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Solution
The fourth proportional to 216,649.12, 324,853.62 and 88,655.32 is: 132,933.85
Step by Step Solution
- Step 1: Write the proportion equation
216,649.12 : 324,853.62 = 88,655.32 : x - Step 2: Convert to fraction form
216,649.12/324,853.62 = 88,655.32/x - Step 3: Cross multiply
216,649.12x = 324,853.62 × 88,655.32 - Step 4: Simplify right side
216,649.12x = 28,800,001,634.26 - Step 5: Solve for x
x = 28,800,001,634.26/216,649.12 - Step 6: Final answer
x = 132,933.85
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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.