Finding the Fourth Proportional to 284,427.12, 426,665.18 and 74,065.44
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Solution
The fourth proportional to 284,427.12, 426,665.18 and 74,065.44 is: 111,104.54
Step by Step Solution
- Step 1: Write the proportion equation
284,427.12 : 426,665.18 = 74,065.44 : x - Step 2: Convert to fraction form
284,427.12/426,665.18 = 74,065.44/x - Step 3: Cross multiply
284,427.12x = 426,665.18 × 74,065.44 - Step 4: Simplify right side
284,427.12x = 31,601,144,289.38 - Step 5: Solve for x
x = 31,601,144,289.38/284,427.12 - Step 6: Final answer
x = 111,104.54
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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.