Finding the Fourth Proportional to 226,166.20, 312,114.78 and 122,804.75
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Solution
The fourth proportional to 226,166.20, 312,114.78 and 122,804.75 is: 169,473.50
Step by Step Solution
- Step 1: Write the proportion equation
226,166.20 : 312,114.78 = 122,804.75 : x - Step 2: Convert to fraction form
226,166.20/312,114.78 = 122,804.75/x - Step 3: Cross multiply
226,166.20x = 312,114.78 × 122,804.75 - Step 4: Simplify right side
226,166.20x = 38,329,178,309.49 - Step 5: Solve for x
x = 38,329,178,309.49/226,166.20 - Step 6: Final answer
x = 169,473.50
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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.