Finding the Fourth Proportional to 339,377.05, 509,176.30 and 161,861.01
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Solution
The fourth proportional to 339,377.05, 509,176.30 and 161,861.01 is: 242,844.32
Step by Step Solution
- Step 1: Write the proportion equation
339,377.05 : 509,176.30 = 161,861.01 : x - Step 2: Convert to fraction form
339,377.05/509,176.30 = 161,861.01/x - Step 3: Cross multiply
339,377.05x = 509,176.30 × 161,861.01 - Step 4: Simplify right side
339,377.05x = 82,415,787,640.18 - Step 5: Solve for x
x = 82,415,787,640.18/339,377.05 - Step 6: Final answer
x = 242,844.32
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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.