Finding the Fourth Proportional to 218,857.68, 302,023.68 and 118,255.68
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Solution
The fourth proportional to 218,857.68, 302,023.68 and 118,255.68 is: 163,192.88
Step by Step Solution
- Step 1: Write the proportion equation
218,857.68 : 302,023.68 = 118,255.68 : x - Step 2: Convert to fraction form
218,857.68/302,023.68 = 118,255.68/x - Step 3: Cross multiply
218,857.68x = 302,023.68 × 118,255.68 - Step 4: Simplify right side
218,857.68x = 35,716,015,654.50 - Step 5: Solve for x
x = 35,716,015,654.50/218,857.68 - Step 6: Final answer
x = 163,192.88
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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.