Finding the Fourth Proportional to 311,527.68, 429,907.93 and 168,287.68
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Solution
The fourth proportional to 311,527.68, 429,907.93 and 168,287.68 is: 232,236.85
Step by Step Solution
- Step 1: Write the proportion equation
311,527.68 : 429,907.93 = 168,287.68 : x - Step 2: Convert to fraction form
311,527.68/429,907.93 = 168,287.68/x - Step 3: Cross multiply
311,527.68x = 429,907.93 × 168,287.68 - Step 4: Simplify right side
311,527.68x = 72,348,208,153.30 - Step 5: Solve for x
x = 72,348,208,153.30/311,527.68 - Step 6: Final answer
x = 232,236.85
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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.