Finding the Fourth Proportional to 371,221.71, 512,286.33 and 201,455.84
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Solution
The fourth proportional to 371,221.71, 512,286.33 and 201,455.84 is: 278,009.25
Step by Step Solution
- Step 1: Write the proportion equation
371,221.71 : 512,286.33 = 201,455.84 : x - Step 2: Convert to fraction form
371,221.71/512,286.33 = 201,455.84/x - Step 3: Cross multiply
371,221.71x = 512,286.33 × 201,455.84 - Step 4: Simplify right side
371,221.71x = 103,203,070,369.24 - Step 5: Solve for x
x = 103,203,070,369.24/371,221.71 - Step 6: Final answer
x = 278,009.25
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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.