Finding the Fourth Proportional to 192,991.91, 266,297.83 and 121,321.19
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Solution
The fourth proportional to 192,991.91, 266,297.83 and 121,321.19 is: 167,403.75
Step by Step Solution
- Step 1: Write the proportion equation
192,991.91 : 266,297.83 = 121,321.19 : x - Step 2: Convert to fraction form
192,991.91/266,297.83 = 121,321.19/x - Step 3: Cross multiply
192,991.91x = 266,297.83 × 121,321.19 - Step 4: Simplify right side
192,991.91x = 32,307,569,630.02 - Step 5: Solve for x
x = 32,307,569,630.02/192,991.91 - Step 6: Final answer
x = 167,403.75
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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.