Finding the Fourth Proportional to 309,227.13, 426,786.71 and 181,908.09
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Solution
The fourth proportional to 309,227.13, 426,786.71 and 181,908.09 is: 251,064.50
Step by Step Solution
- Step 1: Write the proportion equation
309,227.13 : 426,786.71 = 181,908.09 : x - Step 2: Convert to fraction form
309,227.13/426,786.71 = 181,908.09/x - Step 3: Cross multiply
309,227.13x = 426,786.71 × 181,908.09 - Step 4: Simplify right side
309,227.13x = 77,635,954,343.94 - Step 5: Solve for x
x = 77,635,954,343.94/309,227.13 - Step 6: Final answer
x = 251,064.50
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1.5x scale
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.