Finding the Fourth Proportional to 189,436.98, 261,421.74 and 104,554.05
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Solution
The fourth proportional to 189,436.98, 261,421.74 and 104,554.05 is: 144,283.88
Step by Step Solution
- Step 1: Write the proportion equation
189,436.98 : 261,421.74 = 104,554.05 : x - Step 2: Convert to fraction form
189,436.98/261,421.74 = 104,554.05/x - Step 3: Cross multiply
189,436.98x = 261,421.74 × 104,554.05 - Step 4: Simplify right side
189,436.98x = 27,332,701,675.05 - Step 5: Solve for x
x = 27,332,701,675.05/189,436.98 - Step 6: Final answer
x = 144,283.88
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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.