Finding the Fourth Proportional to 212,707.27, 319,060.89 and 145,944.99
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Solution
The fourth proportional to 212,707.27, 319,060.89 and 145,944.99 is: 218,917.48
Step by Step Solution
- Step 1: Write the proportion equation
212,707.27 : 319,060.89 = 145,944.99 : x - Step 2: Convert to fraction form
212,707.27/319,060.89 = 145,944.99/x - Step 3: Cross multiply
212,707.27x = 319,060.89 × 145,944.99 - Step 4: Simplify right side
212,707.27x = 46,565,338,400.44 - Step 5: Solve for x
x = 46,565,338,400.44/212,707.27 - Step 6: Final answer
x = 218,917.48
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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.