Finding the Fourth Proportional to 261,530.49, 392,295.74 and 74,537.13
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Solution
The fourth proportional to 261,530.49, 392,295.74 and 74,537.13 is: 111,805.70
Step by Step Solution
- Step 1: Write the proportion equation
261,530.49 : 392,295.74 = 74,537.13 : x - Step 2: Convert to fraction form
261,530.49/392,295.74 = 74,537.13/x - Step 3: Cross multiply
261,530.49x = 392,295.74 × 74,537.13 - Step 4: Simplify right side
261,530.49x = 29,240,598,570.83 - Step 5: Solve for x
x = 29,240,598,570.83/261,530.49 - Step 6: Final answer
x = 111,805.70
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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.