Finding the Fourth Proportional to 189,574.96, 284,388.36 and 84,391.60
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Solution
The fourth proportional to 189,574.96, 284,388.36 and 84,391.60 is: 126,598.94
Step by Step Solution
- Step 1: Write the proportion equation
189,574.96 : 284,388.36 = 84,391.60 : x - Step 2: Convert to fraction form
189,574.96/284,388.36 = 84,391.60/x - Step 3: Cross multiply
189,574.96x = 284,388.36 × 84,391.60 - Step 4: Simplify right side
189,574.96x = 23,999,988,721.78 - Step 5: Solve for x
x = 23,999,988,721.78/189,574.96 - Step 6: Final answer
x = 126,598.94
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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.