Finding the Fourth Proportional to 371,494.13, 512,668.28 and 201,728.25
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Solution
The fourth proportional to 371,494.13, 512,668.28 and 201,728.25 is: 278,388.45
Step by Step Solution
- Step 1: Write the proportion equation
371,494.13 : 512,668.28 = 201,728.25 : x - Step 2: Convert to fraction form
371,494.13/512,668.28 = 201,728.25/x - Step 3: Cross multiply
371,494.13x = 512,668.28 × 201,728.25 - Step 4: Simplify right side
371,494.13x = 103,419,675,459.23 - Step 5: Solve for x
x = 103,419,675,459.23/371,494.13 - Step 6: Final answer
x = 278,388.45
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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.