Finding the Fourth Proportional to 192,686.64, 288,655.94 and 141,993.68
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Solution
The fourth proportional to 192,686.64, 288,655.94 and 141,993.68 is: 212,714.89
Step by Step Solution
- Step 1: Write the proportion equation
192,686.64 : 288,655.94 = 141,993.68 : x - Step 2: Convert to fraction form
192,686.64/288,655.94 = 141,993.68/x - Step 3: Cross multiply
192,686.64x = 288,655.94 × 141,993.68 - Step 4: Simplify right side
192,686.64x = 40,987,317,021.21 - Step 5: Solve for x
x = 40,987,317,021.21/192,686.64 - Step 6: Final answer
x = 212,714.89
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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.