Finding the Fourth Proportional to 215,530.21, 297,431.67 and 120,036.88
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Solution
The fourth proportional to 215,530.21, 297,431.67 and 120,036.88 is: 165,650.88
Step by Step Solution
- Step 1: Write the proportion equation
215,530.21 : 297,431.67 = 120,036.88 : x - Step 2: Convert to fraction form
215,530.21/297,431.67 = 120,036.88/x - Step 3: Cross multiply
215,530.21x = 297,431.67 × 120,036.88 - Step 4: Simplify right side
215,530.21x = 35,702,769,679.99 - Step 5: Solve for x
x = 35,702,769,679.99/215,530.21 - Step 6: Final answer
x = 165,650.88
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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.