Finding the Fourth Proportional to 233,920.21, 322,811.83 and 129,147.53
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Solution
The fourth proportional to 233,920.21, 322,811.83 and 129,147.53 is: 178,224.66
Step by Step Solution
- Step 1: Write the proportion equation
233,920.21 : 322,811.83 = 129,147.53 : x - Step 2: Convert to fraction form
233,920.21/322,811.83 = 129,147.53/x - Step 3: Cross multiply
233,920.21x = 322,811.83 × 129,147.53 - Step 4: Simplify right side
233,920.21x = 41,690,350,136.02 - Step 5: Solve for x
x = 41,690,350,136.02/233,920.21 - Step 6: Final answer
x = 178,224.66
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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.