Finding the Fourth Proportional to 261,528.99, 392,293.48 and 74,535.63
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Solution
The fourth proportional to 261,528.99, 392,293.48 and 74,535.63 is: 111,803.44
Step by Step Solution
- Step 1: Write the proportion equation
261,528.99 : 392,293.48 = 74,535.63 : x - Step 2: Convert to fraction form
261,528.99/392,293.48 = 74,535.63/x - Step 3: Cross multiply
261,528.99x = 392,293.48 × 74,535.63 - Step 4: Simplify right side
261,528.99x = 29,239,841,676.69 - Step 5: Solve for x
x = 29,239,841,676.69/261,528.99 - Step 6: Final answer
x = 111,803.44
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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.