Finding the Fourth Proportional to 189,438.98, 261,424.50 and 104,556.05
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Solution
The fourth proportional to 189,438.98, 261,424.50 and 104,556.05 is: 144,286.64
Step by Step Solution
- Step 1: Write the proportion equation
189,438.98 : 261,424.50 = 104,556.05 : x - Step 2: Convert to fraction form
189,438.98/261,424.50 = 104,556.05/x - Step 3: Cross multiply
189,438.98x = 261,424.50 × 104,556.05 - Step 4: Simplify right side
189,438.98x = 27,333,513,093.23 - Step 5: Solve for x
x = 27,333,513,093.23/189,438.98 - Step 6: Final answer
x = 144,286.64
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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.