Finding the Fourth Proportional to 290,643.36, 436,048.41 and 122,076.99
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Solution
The fourth proportional to 290,643.36, 436,048.41 and 122,076.99 is: 183,150.51
Step by Step Solution
- Step 1: Write the proportion equation
290,643.36 : 436,048.41 = 122,076.99 : x - Step 2: Convert to fraction form
290,643.36/436,048.41 = 122,076.99/x - Step 3: Cross multiply
290,643.36x = 436,048.41 × 122,076.99 - Step 4: Simplify right side
290,643.36x = 53,231,477,844.87 - Step 5: Solve for x
x = 53,231,477,844.87/290,643.36 - Step 6: Final answer
x = 183,150.51
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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.