Finding the Fourth Proportional to 210,669.30, 290,723.61 and 115,175.97
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Solution
The fourth proportional to 210,669.30, 290,723.61 and 115,175.97 is: 158,942.82
Step by Step Solution
- Step 1: Write the proportion equation
210,669.30 : 290,723.61 = 115,175.97 : x - Step 2: Convert to fraction form
210,669.30/290,723.61 = 115,175.97/x - Step 3: Cross multiply
210,669.30x = 290,723.61 × 115,175.97 - Step 4: Simplify right side
210,669.30x = 33,484,372,330.03 - Step 5: Solve for x
x = 33,484,372,330.03/210,669.30 - Step 6: Final answer
x = 158,942.82
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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.