Finding the Fourth Proportional to 217,530.64, 326,226.84 and 147,857.68
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Solution
The fourth proportional to 217,530.64, 326,226.84 and 147,857.68 is: 221,739.54
Step by Step Solution
- Step 1: Write the proportion equation
217,530.64 : 326,226.84 = 147,857.68 : x - Step 2: Convert to fraction form
217,530.64/326,226.84 = 147,857.68/x - Step 3: Cross multiply
217,530.64x = 326,226.84 × 147,857.68 - Step 4: Simplify right side
217,530.64x = 48,235,143,716.13 - Step 5: Solve for x
x = 48,235,143,716.13/217,530.64 - Step 6: Final answer
x = 221,739.54
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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.