Finding the Fourth Proportional to 290.84, 436.44 and 108.26
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Solution
The fourth proportional to 290.84, 436.44 and 108.26 is: 162.45
Step by Step Solution
- Step 1: Write the proportion equation
290.84 : 436.44 = 108.26 : x - Step 2: Convert to fraction form
290.84/436.44 = 108.26/x - Step 3: Cross multiply
290.84x = 436.44 × 108.26 - Step 4: Simplify right side
290.84x = 47,246.81 - Step 5: Solve for x
x = 47,246.81/290.84 - Step 6: Final answer
x = 162.45
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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.