Finding the Fourth Proportional to 290,718.24, 436,077.37 and 91,054.26
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Solution
The fourth proportional to 290,718.24, 436,077.37 and 91,054.26 is: 136,581.39
Step by Step Solution
- Step 1: Write the proportion equation
290,718.24 : 436,077.37 = 91,054.26 : x - Step 2: Convert to fraction form
290,718.24/436,077.37 = 91,054.26/x - Step 3: Cross multiply
290,718.24x = 436,077.37 × 91,054.26 - Step 4: Simplify right side
290,718.24x = 39,706,702,228.10 - Step 5: Solve for x
x = 39,706,702,228.10/290,718.24 - Step 6: Final answer
x = 136,581.39
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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.