Finding the Fourth Proportional to 371,278.62, 512,365.05 and 201,512.79
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Solution
The fourth proportional to 371,278.62, 512,365.05 and 201,512.79 is: 278,087.95
Step by Step Solution
- Step 1: Write the proportion equation
371,278.62 : 512,365.05 = 201,512.79 : x - Step 2: Convert to fraction form
371,278.62/512,365.05 = 201,512.79/x - Step 3: Cross multiply
371,278.62x = 512,365.05 × 201,512.79 - Step 4: Simplify right side
371,278.62x = 103,248,110,723.99 - Step 5: Solve for x
x = 103,248,110,723.99/371,278.62 - Step 6: Final answer
x = 278,087.95
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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.