Finding the Fourth Proportional to 246,299.49, 339,893.78 and 138,869.28
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Solution
The fourth proportional to 246,299.49, 339,893.78 and 138,869.28 is: 191,639.88
Step by Step Solution
- Step 1: Write the proportion equation
246,299.49 : 339,893.78 = 138,869.28 : x - Step 2: Convert to fraction form
246,299.49/339,893.78 = 138,869.28/x - Step 3: Cross multiply
246,299.49x = 339,893.78 × 138,869.28 - Step 4: Simplify right side
246,299.49x = 47,200,803,810.73 - Step 5: Solve for x
x = 47,200,803,810.73/246,299.49 - Step 6: Final answer
x = 191,639.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.