Finding the Fourth Proportional to 261,591.19, 392,376.45 and 74,602.69
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Solution
The fourth proportional to 261,591.19, 392,376.45 and 74,602.69 is: 111,901.09
Step by Step Solution
- Step 1: Write the proportion equation
261,591.19 : 392,376.45 = 74,602.69 : x - Step 2: Convert to fraction form
261,591.19/392,376.45 = 74,602.69/x - Step 3: Cross multiply
261,591.19x = 392,376.45 × 74,602.69 - Step 4: Simplify right side
261,591.19x = 29,272,338,662.65 - Step 5: Solve for x
x = 29,272,338,662.65/261,591.19 - Step 6: Final answer
x = 111,901.09
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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.