Finding the Fourth Proportional to 290,642.23, 436,046.73 and 122,075.87
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Solution
The fourth proportional to 290,642.23, 436,046.73 and 122,075.87 is: 183,148.82
Step by Step Solution
- Step 1: Write the proportion equation
290,642.23 : 436,046.73 = 122,075.87 : x - Step 2: Convert to fraction form
290,642.23/436,046.73 = 122,075.87/x - Step 3: Cross multiply
290,642.23x = 436,046.73 × 122,075.87 - Step 4: Simplify right side
290,642.23x = 53,230,781,287.39 - Step 5: Solve for x
x = 53,230,781,287.39/290,642.23 - Step 6: Final answer
x = 183,148.82
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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.