Finding the Fourth Proportional to 290,645.36, 436,051.41 and 122,078.99
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Solution
The fourth proportional to 290,645.36, 436,051.41 and 122,078.99 is: 183,153.50
Step by Step Solution
- Step 1: Write the proportion equation
290,645.36 : 436,051.41 = 122,078.99 : x - Step 2: Convert to fraction form
290,645.36/436,051.41 = 122,078.99/x - Step 3: Cross multiply
290,645.36x = 436,051.41 × 122,078.99 - Step 4: Simplify right side
290,645.36x = 53,232,715,720.88 - Step 5: Solve for x
x = 53,232,715,720.88/290,645.36 - Step 6: Final answer
x = 183,153.50
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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.