Finding the Fourth Proportional to 189,384.36, 284,242.05 and 77,125.92
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Solution
The fourth proportional to 189,384.36, 284,242.05 and 77,125.92 is: 115,756.28
Step by Step Solution
- Step 1: Write the proportion equation
189,384.36 : 284,242.05 = 77,125.92 : x - Step 2: Convert to fraction form
189,384.36/284,242.05 = 77,125.92/x - Step 3: Cross multiply
189,384.36x = 284,242.05 × 77,125.92 - Step 4: Simplify right side
189,384.36x = 21,922,429,608.94 - Step 5: Solve for x
x = 21,922,429,608.94/189,384.36 - Step 6: Final answer
x = 115,756.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.