Finding the Fourth Proportional to 201,801.98, 278,476.44 and 111,155.99
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Solution
The fourth proportional to 201,801.98, 278,476.44 and 111,155.99 is: 153,389.60
Step by Step Solution
- Step 1: Write the proportion equation
201,801.98 : 278,476.44 = 111,155.99 : x - Step 2: Convert to fraction form
201,801.98/278,476.44 = 111,155.99/x - Step 3: Cross multiply
201,801.98x = 278,476.44 × 111,155.99 - Step 4: Simplify right side
201,801.98x = 30,954,324,379.88 - Step 5: Solve for x
x = 30,954,324,379.88/201,801.98 - Step 6: Final answer
x = 153,389.60
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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.