Finding the Fourth Proportional to 309,251.31, 426,759.57 and 181,935.09
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Solution
The fourth proportional to 309,251.31, 426,759.57 and 181,935.09 is: 251,066.17
Step by Step Solution
- Step 1: Write the proportion equation
309,251.31 : 426,759.57 = 181,935.09 : x - Step 2: Convert to fraction form
309,251.31/426,759.57 = 181,935.09/x - Step 3: Cross multiply
309,251.31x = 426,759.57 × 181,935.09 - Step 4: Simplify right side
309,251.31x = 77,642,540,776.31 - Step 5: Solve for x
x = 77,642,540,776.31/309,251.31 - Step 6: Final answer
x = 251,066.17
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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.