Finding the Fourth Proportional to 189,341.99, 261,286.27 and 103,302.68
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Solution
The fourth proportional to 189,341.99, 261,286.27 and 103,302.68 is: 142,554.60
Step by Step Solution
- Step 1: Write the proportion equation
189,341.99 : 261,286.27 = 103,302.68 : x - Step 2: Convert to fraction form
189,341.99/261,286.27 = 103,302.68/x - Step 3: Cross multiply
189,341.99x = 261,286.27 × 103,302.68 - Step 4: Simplify right side
189,341.99x = 26,991,571,621.09 - Step 5: Solve for x
x = 26,991,571,621.09/189,341.99 - Step 6: Final answer
x = 142,554.60
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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.