Finding the Fourth Proportional to 261,578.99, 392,644.96 and 121,472.75
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Solution
The fourth proportional to 261,578.99, 392,644.96 and 121,472.75 is: 182,337.51
Step by Step Solution
- Step 1: Write the proportion equation
261,578.99 : 392,644.96 = 121,472.75 : x - Step 2: Convert to fraction form
261,578.99/392,644.96 = 121,472.75/x - Step 3: Cross multiply
261,578.99x = 392,644.96 × 121,472.75 - Step 4: Simplify right side
261,578.99x = 47,695,660,797.93 - Step 5: Solve for x
x = 47,695,660,797.93/261,578.99 - Step 6: Final answer
x = 182,337.51
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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.