Finding the Fourth Proportional to 214,879.18, 322,318.76 and 81,728.68
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Solution
The fourth proportional to 214,879.18, 322,318.76 and 81,728.68 is: 122,593.02
Step by Step Solution
- Step 1: Write the proportion equation
214,879.18 : 322,318.76 = 81,728.68 : x - Step 2: Convert to fraction form
214,879.18/322,318.76 = 81,728.68/x - Step 3: Cross multiply
214,879.18x = 322,318.76 × 81,728.68 - Step 4: Simplify right side
214,879.18x = 26,342,686,794.04 - Step 5: Solve for x
x = 26,342,686,794.04/214,879.18 - Step 6: Final answer
x = 122,593.02
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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.