Finding the Fourth Proportional to 210,992.73, 291,173.18 and 115,508.31
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Solution
The fourth proportional to 210,992.73, 291,173.18 and 115,508.31 is: 159,403.23
Step by Step Solution
- Step 1: Write the proportion equation
210,992.73 : 291,173.18 = 115,508.31 : x - Step 2: Convert to fraction form
210,992.73/291,173.18 = 115,508.31/x - Step 3: Cross multiply
210,992.73x = 291,173.18 × 115,508.31 - Step 4: Simplify right side
210,992.73x = 33,632,921,939.13 - Step 5: Solve for x
x = 33,632,921,939.13/210,992.73 - Step 6: Final answer
x = 159,403.23
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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.