Finding the Fourth Proportional to 282,186.17, 389,408.14 and 154,858.49
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Solution
The fourth proportional to 282,186.17, 389,408.14 and 154,858.49 is: 213,699.90
Step by Step Solution
- Step 1: Write the proportion equation
282,186.17 : 389,408.14 = 154,858.49 : x - Step 2: Convert to fraction form
282,186.17/389,408.14 = 154,858.49/x - Step 3: Cross multiply
282,186.17x = 389,408.14 × 154,858.49 - Step 4: Simplify right side
282,186.17x = 60,303,156,554.11 - Step 5: Solve for x
x = 60,303,156,554.11/282,186.17 - Step 6: Final answer
x = 213,699.90
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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.