Finding the Fourth Proportional to 284,753.21, 427,133.60 and 85,027.73
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Solution
The fourth proportional to 284,753.21, 427,133.60 and 85,027.73 is: 127,542.73
Step by Step Solution
- Step 1: Write the proportion equation
284,753.21 : 427,133.60 = 85,027.73 : x - Step 2: Convert to fraction form
284,753.21/427,133.60 = 85,027.73/x - Step 3: Cross multiply
284,753.21x = 427,133.60 × 85,027.73 - Step 4: Simplify right side
284,753.21x = 36,318,201,695.13 - Step 5: Solve for x
x = 36,318,201,695.13/284,753.21 - Step 6: Final answer
x = 127,542.73
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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.