Finding the Fourth Proportional to 311,526.68, 429,906.56 and 168,286.68
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Solution
The fourth proportional to 311,526.68, 429,906.56 and 168,286.68 is: 232,235.48
Step by Step Solution
- Step 1: Write the proportion equation
311,526.68 : 429,906.56 = 168,286.68 : x - Step 2: Convert to fraction form
311,526.68/429,906.56 = 168,286.68/x - Step 3: Cross multiply
311,526.68x = 429,906.56 × 168,286.68 - Step 4: Simplify right side
311,526.68x = 72,347,546,851.19 - Step 5: Solve for x
x = 72,347,546,851.19/311,526.68 - Step 6: Final answer
x = 232,235.48
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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.