Finding the Fourth Proportional to 290,768.13, 401,265.90 and 163,440.99
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Solution
The fourth proportional to 290,768.13, 401,265.90 and 163,440.99 is: 225,551.87
Step by Step Solution
- Step 1: Write the proportion equation
290,768.13 : 401,265.90 = 163,440.99 : x - Step 2: Convert to fraction form
290,768.13/401,265.90 = 163,440.99/x - Step 3: Cross multiply
290,768.13x = 401,265.90 × 163,440.99 - Step 4: Simplify right side
290,768.13x = 65,583,295,949.24 - Step 5: Solve for x
x = 65,583,295,949.24/290,768.13 - Step 6: Final answer
x = 225,551.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.