Finding the Fourth Proportional to 247,911.57, 371,893.77 and 79,371.63
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Solution
The fourth proportional to 247,911.57, 371,893.77 and 79,371.63 is: 119,065.90
Step by Step Solution
- Step 1: Write the proportion equation
247,911.57 : 371,893.77 = 79,371.63 : x - Step 2: Convert to fraction form
247,911.57/371,893.77 = 79,371.63/x - Step 3: Cross multiply
247,911.57x = 371,893.77 × 79,371.63 - Step 4: Simplify right side
247,911.57x = 29,517,814,711.75 - Step 5: Solve for x
x = 29,517,814,711.75/247,911.57 - Step 6: Final answer
x = 119,065.90
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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.