Finding the Fourth Proportional to 339,418.76, 509,193.74 and 114,815.68
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Solution
The fourth proportional to 339,418.76, 509,193.74 and 114,815.68 is: 172,245.71
Step by Step Solution
- Step 1: Write the proportion equation
339,418.76 : 509,193.74 = 114,815.68 : x - Step 2: Convert to fraction form
339,418.76/509,193.74 = 114,815.68/x - Step 3: Cross multiply
339,418.76x = 509,193.74 × 114,815.68 - Step 4: Simplify right side
339,418.76x = 58,463,424,523.90 - Step 5: Solve for x
x = 58,463,424,523.90/339,418.76 - Step 6: Final answer
x = 172,245.71
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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.