Finding the Fourth Proportional to 218,121.12, 327,332.34 and 143,277.12
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Solution
The fourth proportional to 218,121.12, 327,332.34 and 143,277.12 is: 215,014.64
Step by Step Solution
- Step 1: Write the proportion equation
218,121.12 : 327,332.34 = 143,277.12 : x - Step 2: Convert to fraction form
218,121.12/327,332.34 = 143,277.12/x - Step 3: Cross multiply
218,121.12x = 327,332.34 × 143,277.12 - Step 4: Simplify right side
218,121.12x = 46,899,234,958.06 - Step 5: Solve for x
x = 46,899,234,958.06/218,121.12 - Step 6: Final answer
x = 215,014.64
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1.5x scale
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.