Finding the Fourth Proportional to 189,408.24, 261,477.99 and 117,811.26
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Solution
The fourth proportional to 189,408.24, 261,477.99 and 117,811.26 is: 162,638.39
Step by Step Solution
- Step 1: Write the proportion equation
189,408.24 : 261,477.99 = 117,811.26 : x - Step 2: Convert to fraction form
189,408.24/261,477.99 = 117,811.26/x - Step 3: Cross multiply
189,408.24x = 261,477.99 × 117,811.26 - Step 4: Simplify right side
189,408.24x = 30,805,051,464.17 - Step 5: Solve for x
x = 30,805,051,464.17/189,408.24 - Step 6: Final answer
x = 162,638.39
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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.