Finding the Fourth Proportional to 290,717.24, 436,075.87 and 91,053.26
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Solution
The fourth proportional to 290,717.24, 436,075.87 and 91,053.26 is: 136,579.88
Step by Step Solution
- Step 1: Write the proportion equation
290,717.24 : 436,075.87 = 91,053.26 : x - Step 2: Convert to fraction form
290,717.24/436,075.87 = 91,053.26/x - Step 3: Cross multiply
290,717.24x = 436,075.87 × 91,053.26 - Step 4: Simplify right side
290,717.24x = 39,706,127,162.82 - Step 5: Solve for x
x = 39,706,127,162.82/290,717.24 - Step 6: Final answer
x = 136,579.88
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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.