Finding the Fourth Proportional to 339,493.20, 509,350.36 and 161,977.26
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Solution
The fourth proportional to 339,493.20, 509,350.36 and 161,977.26 is: 243,018.64
Step by Step Solution
- Step 1: Write the proportion equation
339,493.20 : 509,350.36 = 161,977.26 : x - Step 2: Convert to fraction form
339,493.20/509,350.36 = 161,977.26/x - Step 3: Cross multiply
339,493.20x = 509,350.36 × 161,977.26 - Step 4: Simplify right side
339,493.20x = 82,503,175,692.81 - Step 5: Solve for x
x = 82,503,175,692.81/339,493.20 - Step 6: Final answer
x = 243,018.64
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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.