Finding the Fourth Proportional to 256,671.25, 385,072.49 and 106,861.75
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Solution
The fourth proportional to 256,671.25, 385,072.49 and 106,861.75 is: 160,319.94
Step by Step Solution
- Step 1: Write the proportion equation
256,671.25 : 385,072.49 = 106,861.75 : x - Step 2: Convert to fraction form
256,671.25/385,072.49 = 106,861.75/x - Step 3: Cross multiply
256,671.25x = 385,072.49 × 106,861.75 - Step 4: Simplify right side
256,671.25x = 41,149,519,462.73 - Step 5: Solve for x
x = 41,149,519,462.73/256,671.25 - Step 6: Final answer
x = 160,319.94
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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.