Finding the Fourth Proportional to 218,939.09, 302,135.94 and 118,337.09
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Solution
The fourth proportional to 218,939.09, 302,135.94 and 118,337.09 is: 163,305.18
Step by Step Solution
- Step 1: Write the proportion equation
218,939.09 : 302,135.94 = 118,337.09 : x - Step 2: Convert to fraction form
218,939.09/302,135.94 = 118,337.09/x - Step 3: Cross multiply
218,939.09x = 302,135.94 × 118,337.09 - Step 4: Simplify right side
218,939.09x = 35,753,886,413.33 - Step 5: Solve for x
x = 35,753,886,413.33/218,939.09 - Step 6: Final answer
x = 163,305.18
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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.