Finding the Fourth Proportional to 243,644.26, 365,491.46 and 91,969.09
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Solution
The fourth proportional to 243,644.26, 365,491.46 and 91,969.09 is: 137,963.09
Step by Step Solution
- Step 1: Write the proportion equation
243,644.26 : 365,491.46 = 91,969.09 : x - Step 2: Convert to fraction form
243,644.26/365,491.46 = 91,969.09/x - Step 3: Cross multiply
243,644.26x = 365,491.46 × 91,969.09 - Step 4: Simplify right side
243,644.26x = 33,613,915,605.40 - Step 5: Solve for x
x = 33,613,915,605.40/243,644.26 - Step 6: Final answer
x = 137,963.09
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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.