Finding the Fourth Proportional to 409,578.09, 565,220.34 and 228,301.49
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Solution
The fourth proportional to 409,578.09, 565,220.34 and 228,301.49 is: 315,057.49
Step by Step Solution
- Step 1: Write the proportion equation
409,578.09 : 565,220.34 = 228,301.49 : x - Step 2: Convert to fraction form
409,578.09/565,220.34 = 228,301.49/x - Step 3: Cross multiply
409,578.09x = 565,220.34 × 228,301.49 - Step 4: Simplify right side
409,578.09x = 129,040,642,974.21 - Step 5: Solve for x
x = 129,040,642,974.21/409,578.09 - Step 6: Final answer
x = 315,057.49
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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.