Finding the Fourth Proportional to 284,857.92, 427,315.76 and 74,497.60
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Solution
The fourth proportional to 284,857.92, 427,315.76 and 74,497.60 is: 111,753.95
Step by Step Solution
- Step 1: Write the proportion equation
284,857.92 : 427,315.76 = 74,497.60 : x - Step 2: Convert to fraction form
284,857.92/427,315.76 = 74,497.60/x - Step 3: Cross multiply
284,857.92x = 427,315.76 × 74,497.60 - Step 4: Simplify right side
284,857.92x = 31,833,998,562.18 - Step 5: Solve for x
x = 31,833,998,562.18/284,857.92 - Step 6: Final answer
x = 111,753.95
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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.