Finding the Fourth Proportional to 205,232.34, 307,894.68 and 72,121.80
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Solution
The fourth proportional to 205,232.34, 307,894.68 and 72,121.80 is: 108,198.92
Step by Step Solution
- Step 1: Write the proportion equation
205,232.34 : 307,894.68 = 72,121.80 : x - Step 2: Convert to fraction form
205,232.34/307,894.68 = 72,121.80/x - Step 3: Cross multiply
205,232.34x = 307,894.68 × 72,121.80 - Step 4: Simplify right side
205,232.34x = 22,205,918,532.02 - Step 5: Solve for x
x = 22,205,918,532.02/205,232.34 - Step 6: Final answer
x = 108,198.92
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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.