Finding the Fourth Proportional to 339,842.14, 509,730.26 and 103,186.88
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Solution
The fourth proportional to 339,842.14, 509,730.26 and 103,186.88 is: 154,770.32
Step by Step Solution
- Step 1: Write the proportion equation
339,842.14 : 509,730.26 = 103,186.88 : x - Step 2: Convert to fraction form
339,842.14/509,730.26 = 103,186.88/x - Step 3: Cross multiply
339,842.14x = 509,730.26 × 103,186.88 - Step 4: Simplify right side
339,842.14x = 52,597,475,170.99 - Step 5: Solve for x
x = 52,597,475,170.99/339,842.14 - Step 6: Final answer
x = 154,770.32
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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.