Finding the Fourth Proportional to 261,566.53, 360,918.79 and 154,121.95
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Solution
The fourth proportional to 261,566.53, 360,918.79 and 154,121.95 is: 212,662.94
Step by Step Solution
- Step 1: Write the proportion equation
261,566.53 : 360,918.79 = 154,121.95 : x - Step 2: Convert to fraction form
261,566.53/360,918.79 = 154,121.95/x - Step 3: Cross multiply
261,566.53x = 360,918.79 × 154,121.95 - Step 4: Simplify right side
261,566.53x = 55,625,507,772.28 - Step 5: Solve for x
x = 55,625,507,772.28/261,566.53 - Step 6: Final answer
x = 212,662.94
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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.